Preview builds for the Windows 10 October 2018 Update (Redstone 5, version 1809)
Windows 10 Insider Preview Build 17763
Release date: September 18, 2018
This minor build has no new features and offers fixes for a half-dozen small issues. Among them are one in which touching a Flash element in Microsoft Edge with two or more fingers may result in the tab crashing, and another where thumbnails and icons might not be rendered if there were any video files saved to the desktop.
There are two known issues in this build: Task Manager does not report accurate CPU usage, and the arrows that expand “Background processes” in Task Manager are, in Microsoft’s words, “blinking constantly and weirdly.”
(Get more info about Insider Preview Build 17763.)
Windows 10 Insider Preview Build 17760
Release date: September 14, 2018
This minor build has no new features and offers fixes for a half-dozen small issues. Among them are rendering issues in certain types of PDFs in Microsoft Edge, crashes that occurred when using swipe to navigate back in Microsoft Edge, and apps that use .NET 4.7.1 not working correctly.
There are no known issues in this build.
(Get more info about Insider Preview Build 17760.)
Windows 10 Insider Preview Build 17758
Release date: September 11, 2018
This minor build has no new features; it offers fixes for a handful of small issues. Among them are an issue that caused the back button in Settings and other apps to become white text on a white background if you hovered over it, and another in which certain apps crashed when you tried to save a file from the app.
In the description of this build, Microsoft announced that starting with Build 17720, it updated the Storage Sense feature by letting it automatically free up disk space by turning older, unused, locally available files in OneDrive into online-only files. The “What’s new in Storage Sense?” blog post has more details.
There is one known issue in this build, in which Narrator sometimes does not read in the Settings app when you navigate using Tab and arrow keys.
(Get more info about Windows 10 Insider 17758.)
Windows 10 Insider Preview Build 17755
Release date: September 7, 2018
This minor build has no new features and only three fixes for problems: One that had resulted in slower resume from hibernation on some devices, another that had caused HDR video being unexpectedly clipped in certain situations, and a third in which Windows Hello spent more time in the “Getting Ready” state in recent builds.
There are two known issues in this build, including one in which when you use the Ease of Access Make Text bigger setting, you might see text clipping issues or find that text is not increasing in size everywhere. The two issues are the same as in the previous build, 17754.
(Get more info about Insider Preview 17755.)
Windows 10 Insider Preview Build 17754
Release date: September 5, 2018
This minor build has a variety of fixes for small problems, another sign that the Windows 10 October 2018 Update is close to being done. Among the issues fixed are one that caused the Action Center to work with reduced reliability, another in which clicking on web links in progressive web apps such as Twitter didn’t open the browser, and a third in which using the pen to ink in Microsoft Edge’s web notes caused crashes.
There are two known issues in this build, including one in which when you use the Ease of Access Make Text bigger setting, you might see text clipping issues or find that text is not increasing in size everywhere.
(Get more info about Insider Preview Build 17754.)
Windows 10 Insider Preview Build 17751
Release date: August 31, 2018
This build is a minor one and shows that Microsoft is coming closer to finalizing the code for the Windows 10 October 2018 Update, as the upcoming release is now officially named. The main thing you’ll notice is that there’s no longer a watermark on the lower right-hand corner of the desktop. That doesn’t mean it’s the final build, but it does mean that Microsoft is “beginning the phase of checking in final code to prepare for the final release,” in Microsoft’s words.
Apart from that, the build has only minor fixes and changes. Among the issues fixed are one in which you would get an error saying no supported app is installed after clicking some activities in Timeline, even though a supported app was installed, and another in which explorer.exe crashed if you were in Tablet Mode and opened Task View while in portrait orientation.
There are three known issues in this build, including one in which clicking on web links in progressive web apps such as Twitter doesn’t open the browser.
(Get more info about Insider Preview Build 17751.)
Windows 10 Insider Preview Build 17746
Release date: August 24, 2018
This build, as is the case with the last several builds, is a very minor one with only a handful of small changes, improvements and fixes. Expect it to be that way for most, if not all, of the remaining builds before final release of Redstone 5. There are only five small changes and fixes in this build, including for a bug in which Narrator would incorrectly report some standard combo boxes as “editable combo box” instead of “combo box,” and another in which Windows Mixed Reality caused motion controllers to need to be re-paired after the initial setup before appearing in the headset.
There are three known issues in this build, including one in which you may experience a bug check (GSOD) when logging out of your user profile or shutting down your PC.
(Get more info about Insider Preview Build 17746.)
Windows 10 Insider Preview Build 17744
Release date: August 21, 2018
This very minor build includes only a handful of small changes, improvements and fixes, including resolving an issue in which the contents of the Microsoft Edge window became offset from its window frame, and another in which certain apps crashed when they sent their Timeline activities.
There are four known issues in this build, including one in which you may experience a bug check (GSOD) when logging out of your user profile or shutting down your PC, and another in which after setting up a Windows Mixed Reality headset for the first time with motion controllers, the controllers may need to be paired a second time before appearing in the headset.
(Get more info about Insider Preview Build 17744.)
Windows 10 Insider Preview Build 17741
Release date: August 17, 2018
This very minor build includes a new desktop icon that, when clicked, launches the Your Phone app for Android phones, which lets people see and copy photos from Android phones to their PCs. The app was introduced back in build 17730; only the desktop icon for launching it is new in this build.
Apart from that, there are more than a dozen minor changes, improvements and bug fixes, including fixing an issue which caused PCs to bug check (GSOD) when deleting a local folder that was synced to OneDrive, and another issue in which when Settings was open to “Bluetooth & Other Devices” and then minimized to the taskbar, when you tried to resume the app, Settings would crash.
There are three known issues in this build, including one in which after setting up a Windows Mixed Reality headset for the first time with motion controllers, the controllers may need to be re-paired before appearing in the headset.
(Get more info about Insider Preview Build 17741.)
Windows 10 Insider Preview Build 17738
Release date: August 14, 2018
This very minor build introduces no new features. It has more than a dozen bug fixes and minor changes and improvements, including fixing an issue that hurt the Start menu’s performance and reliability, and another in which Microsoft Edge’s Settings and More menu became truncated when the option to increase text size was enabled in Settings.
There are a half-dozen known issues in this build, including one in which a PC will perform a bug check (GSOD) when deleting a local folder that is synced to OneDrive, and another in which after setting up a Windows Mixed Reality headset for the first time with motion controllers, the controllers may need to be paired a second time before appearing in the headset.
(Get more info about Insider Preview Build 17738.)
Windows 10 Insider Preview Build 17735
Release date: Aug. 10, 2018
This very minor build introduces no new features, and has fewer than a dozen bug fixes and minor changes and improvements, including fixing an issue in which links that launched one app from another app were not working, and another in which in Windows Mixed Reality the voice command, “Flashlight on,” would fail to activate the flashlight feature.
There are a number of known issues in this build, including your PC performing a bugcheck (GSOD) when deleting a local folder that is synced to OneDrive, and another in which the taskbar flyouts (network, volume, etc.) no longer have an acrylic background.
(Get more info about Insider Preview Build 17735.)
Windows 10 Insider Preview Build 17733
Release date: Aug. 8, 2018
This very minor build introduces only one very small feature, a dark theme in File Explorer. In addition, Narrator received more than a dozen fixes, including one in which Narrator couldn’t access all the emoji in the Touch Keyboard’s emoji panel, and another in which Narrator couldn’t read the label of the Word document recovery dialog. A few overall fixes were also made for Windows 10 itself, including one in which the touch keyboard became invisible on the screen, and another in which – if you reset certain devices and chose to keep files – the Sound Settings page would be unresponsive after logging back into Windows.
There are a number of known issues in this build, including potential Start reliability and performance issues, and one in which after setting up a Windows Mixed Reality headset for the first time with motion controllers, the controllers may need to be re-paired a second time before appearing in the headset.
(Get more info about Insider Preview Build 17733.)
Windows 10 Insider Preview Build 17730
Release date: Aug. 3, 2018
This build introduces the new Your Phone App that will let people with Android phones see and copy photos from those phones to their PCs. To install it, click the Your Phone app icon, and you’ll then get an app that has to be installed on the phone. The iOS version links an iPhone to a PC, so that when you surf the web on your phone, you’ll be able to send the webpage to your PC and pick up where you left off on the phone.
The build also lets the Edge browser take advantage of HTTP/2 as supported in Windows Server 2019. For details, see Top 10 Networking Features in Windows Server 2019: #8 A Faster, Safer Internet.
In addition, there are the usual small changes and fixes, including resolving an issue that caused the volume slider in certain apps to perform poorly with touch, and another in which in certain apps, including Twitter, stopped rendering content when navigating after a while.
There are a number of known issues in this build, including one in which clicking a link to launch one app from another app may not work, and potential Start reliability and performance issues.
(Get more info about Insider Preview 17730.)
Windows 10 Insider Preview Build 17728
Release date: July 31, 2018
This minor build makes a number of changes to the Narrator, including better reading and navigating in Scan mode, improved reliability, and better use of Braille commanding when using the Narrator key from the Braille display.
Microsoft also announced that in the next few weeks, Windows Insiders will be able to use the new Your Phone App to let people with Android devices see content from those devices on their PCs. It will do things such as let someone take pictures on an Android phone and then view the photos on a PC. The app will let users with iOS devices link their phones to their PCs to do things such as surf the web on their phones, then send the webpage to their PCs so they can pick up where they left off.
In addition, there are the usual small changes and fixes, including an issue in which the Clock & Calendar flyout sometimes did not appear until the Start or the Action Center was clicked, and another in which Find on Page in Microsoft Edge would stop working for open PDFs once the PDF was refreshed.
There are a number of known issues in this build, including one that affects WDAG, Remote Desktop and Hyper-V. In it, Remote Desktop Client (mstsc.exe) users will see a misleading error dialog warning about low virtual memory when a connection is being established.
(Get more info about Insider Preview 17728.)
Windows 10 Insider Preview Builds 17723 and 18204
Release date: July 25, 2018
This build serves double-duty. It’s both a preview (17723) for Redstone 5 as well as the first build for testers (18204) who have opted into Skip Ahead for Redstone 6.
Emoji fans will be pleased to see that there are now 157 new emoji, including superheroes, redheads, a softball, a pirate flag and a llama. That’s because Unicode 11 has been incorporated into the build. Access them via the Emoji Panel (WIN + .) or the touch keyboard.
Also new is what Microsoft is calling a mixed reality flashlight, which lets you easily bypass the mixed reality world when you’re wearing a mixed reality headset, and instead look at the real world. So no longer will you have to remove your headset when you want to peek at something nearby or reach for a drink or phone, for example. You’ll be able to do it via the Start menu, a button shortcut or a voice command.
Microsoft Edge has gotten a few tweaks, including new Group Policies and MDM settings for IT administrators to manage it. There’s also an easier way for device administrators to set up their PCs as a kiosk or digital sign.
In addition, there are a variety of small changes and fixes, including one in which some laptops underwent a CRITICAL PROCESS DIED bug check when the PC was put to sleep by closing the lid and the connected power disconnected. There are also a variety of known issues, including one in which the clock & calendar flyout may not appear until bringing up Start or Action Center, and they will then both appear at the same time. The same issue may result in notifications not appearing until Start or Action Center is opened.
(Get more info about Insider Preview Build 17723 and 18204.)
Windows 10 Insider Preview Build 17711
Release date: July 6, 2018
No big news in this build. Microsoft Edge gets a few minor additions, including new themes and a new consent box for saving autofill data. Microsoft also continues to add new Fluent design elements throughout Windows, including shadows for popup controls. There’s also a new Windows HD Color page, available under Display Settings. The Registry Editor has been improved with more useful input tools.
There is also a wide variety of very small fixes, including for a bug in which attempting to pin Settings categories to the Start menu would either crash Settings or do nothing, and another in which creating a system image from backup and restore in the control panel would fail on x86 machines.
(Get more info about Insider Preview Build 17711.)
Windows 10 Insider Preview Build 17704
Release date: June 27, 2018
The big news in this build is that the Sets feature, which lets you group documents, web pages, files and apps in tabs, and then work with them, has been pulled — with no word about when it might be reinstated. This means that it may not ship with Redstone 5.
Sets was originally scheduled to be released as part of the Windows 10 April 2018 Update (Redstone 4), but Microsoft pulled it due to a variety of problems. The company included Sets in Redstone 5 builds starting with Build 17618 on March 7, 2018 — even before the Windows 10 April 2018 Update was released. And now, in Build 17704, Microsoft has pulled it again.
Microsoft explained the decision this way in its description of this latest build: “Starting with this build, we’re taking Sets offline to continue making it great. Based on your feedback, some of the things we’re focusing on include improvements to the visual design and continuing to better integrate Office and Microsoft Edge into Sets to enhance workflow. If you have been testing Sets, you will no longer see it as of today’s build, however, Sets will return in a future WIP flight.”
No date was set for the feature’s return, so there’s no guarantee it will be included in Redstone 5, due this fall. If you’ve been following the build notes for Redstone 5, you might not be that surprised about what Microsoft has done, because Microsoft has continually reported issues with the feature in its notes about each build.
Aside from pulling Sets, Microsoft has done a fair amount of work on Microsoft Edge in this build, including incorporating more Fluent Design elements into it, adding redesigned settings and the ability to customize the toolbar, as well as giving users control over whether media should automatically play on web pages.
The Skype for Windows 10 app gets a serious update with a variety of new features, including easier screen sharing, a new layout making it easier to find contacts, customizable themes and more. Check here for more details from Microsoft.
The Diagnostic Data Viewer, available as a separate download, has gotten tweaks, including the ability to view problem reports that have been or will be sent to Microsoft. However, it remains an extremely difficult-to-use tool that even programmers will struggle to understand.
There have also been a several improvements to Windows Security, including new protections and settings such as to block suspicious behaviors and to manage the various types of anti-malware, firewall and other security software running on your PC.
Other changes include allowing non-admin users to install fonts, and new columns for Task Manager that show power usage and power trends. There is also a long list of fixes, including for a bug that caused the lock screen to crash in a loop when Picture Password was selected, and another in which when Cortana search results were clicked, nothing would happen.
And there are a small number of known issues, including one in which Windows Mixed Reality might get stuck after going to sleep and display an error message in Mixed Reality Portal or a “Wake up” button that doesn’t work.
(Get more info about Insider Preview Build 17704.)
Windows 10 Insider Preview Build 17692
Release date: June 14, 2018
This build introduces an easier way to use the Windows 10 touchscreen keyboard with the addition of SwiftKey, which lets you enter text by dragging your fingers. SwiftKey, previously available only for iOS and Android, also improves the accuracy of autocorrections and text-input predictions.
In addition, there have been improvements to a number of Windows features. You can now search for text using Narrator’s new Find feature, and Narrator will also automatically read the contents of a dialog box when brought to the foreground, among other additions. New audio controls have been added to the Game Bar that let you change your default audio output device and mute or adjust the volume of games and apps running. Windows Mixed Reality has gotten several improvements, including the ability to stream audio to both a headset and PC speakers simultaneously.
There are the usual variety of minor changes and fixes, including for a bug that resulted in audio glitching on systems with lots of firewall rules, and another in Microsoft Edge where if both images and text were selected, right-clicking on the image and selecting copy wouldn’t work.
There is a long list of known issues with this release, including one in which launching Start causes reliability and performance issues, and another in which some settings in Settings may be unexpectedly missing and/or missing their labels. The Game Bar may also crash on x86 machines.
(Get more info about Insider Preview Build 17692.)
Windows 10 Insider Preview Build 17686
Release date: June 6, 2018
This minor build makes several minor improvements to Windows Mixed Reality, including adjustments to the mixed reality video capture experience to make it easier to stop videos from the Start menu. Also, the Windows Settings app gets a new Region page that lets you override default regional format settings such as Calendar, First day of the week, Dates, Times, and Currency. To use it, go to Settings > Time & Language > Region.
There are the usual variety of minor changes and fixes, including one in which Paint and WordPad settings and recent files weren’t migrated during upgrades, and another in which taskbar flyouts (network, volume, etc.) didn’t have a shadow. There are also a number of known issues that haven’t been fixed, including increased reliability and performance issues when launching Start. The new Sets feature continues to have problems working with Microsoft Office; for instance, there’s a bug in which tiling and cascading windows, including features like “View Side by Side” in Word, will not work for inactive tabs.
(Get more info about Insider Preview Build 17686.)
Windows 10 Insider Preview Build 17682
Release date: May 31, 2018
This build includes several minor changes, notably to the new Sets feature. Microsoft has tweaked Sets’ tab page to make it more obvious that apps can be launched from it. Now, when you click the plus button in a Sets window, apps will be included in the frequent destinations list. The “all apps” list has also been integrated into the page so you can browse your apps, instead of having to use the search box.
Microsoft Edge now includes a preview of the new Web Authentication API for developers, which provides an open, scalable and interoperable solution for authentication, and replaces passwords.
Wireless projection gets some tweaks designed to help you know when you’re wirelessly projecting and how to disconnect, particularly if your session was begun in File Explorer or an app. A new control banner at the top of the screen tells you the state of your connection and allows you to quickly disconnect or reconnect. You can also use it to tune the connection based on what you are doing.
There’s the usual variety of minor changes and fixes, including fixing an issue that resulted in some apps missing pinned and recent items when you right-clicked their icons in the taskbar. There are also a number of known issues that have yet to be fixed, including reliability and performance issues when launching Start. The new Sets feature continues to have a variety of problems working with Microsoft Office, many of which have also been present in past builds, including one in which the top of some Win32 desktop app windows may appear slightly underneath the tab bar when maximized. To work around the issue, restore and re-maximize the window.
(Get more info about Insider Preview Build 17682.)
Windows 10 Insider Preview Build 17677
Release date: May 24, 2018
This build includes a variety of minor changes. Microsoft Edge’s “Settings and more” menu has been reorganized into groups to make options easier to find, and with icons placed next to each menu option. You can now also see your most visited sites on the Windows taskbar or Start menu. Right-click the Microsoft Edge icon to see a list of most visited sites and pin any you want. Right-click on an entry to remove it from the list. You can also more easily organize groups of tabs. In addition, new options (“Show in folder” and “Copy link”) have been added to the right-click menu for downloads in the “Downloads” pane.
The Windows Narrator has been improved and supports selecting content in Edge, Word, Outlook, Mail and most text applications. Mobile Broadband (LTE) connectivity on Windows gets a makeover in this build, and includes a new, more reliable network driver model. In addition, Task Manager’s memory reporting has been improved, and the Windows kernel now has support for IPv6 to KDNET.
There are several minor fixes, including for a bug in which the Home and End keys did not work in Edge. The build also has a variety of known issues, including one in which if you right-click apps in the taskbar, you might find that the jump list is missing pinned and recent items. And the new Sets feature has a variety of problems working with Microsoft Office, including one in which the top of some Win32 desktop app windows may appear slightly underneath the tab bar when maximized. To work around the issue, restore and re-maximize the window.
(Get more info about Insider Preview Build 17677.)
Windows 10 Insider Preview Build 17672
Release date: May 16, 2018
This build has only very minor changes and fixes. In it, the Windows Security Center (WSC) service now requires that third-party antivirus programs run as protected processes, or else they won’t show up in the Windows Security interface, and Windows Defender Antivirus will run side by side with them. You can, however, disable the behavior by creating the following registry key and rebooting:
HKLM\SOFTWARE\Microsoft\Security Center\Feature DisableAvCheck (DWORD) = 1
Note that the key won’t work when the next version of Windows 10 is closer to being released.
There’s also a variety of minor changes and fixes, including one in which PCs appeared to be stuck at “Preparing to install…” between 80% and 100% in Windows Update when attempting to install a new build.
The build has a variety of known issues, including one in which Narrator reads extra text when Alt + Tab is pressed. And the new Sets feature has a variety of problems working with Microsoft Office, including one in which tiling and cascading windows will not work for inactive tabs.
(Get more info about Insider Preview Build 17672.)
Windows 10 Insider Preview Build 17666
Release date: May 9, 2018
This build adds a variety of new features, including additions to the Sets feature. Sets now uses more Fluent Design standards, including an acrylic title bar. You can also mute web pages in Sets that play audio. And using Alt -Tab will show all recent Edge tabs when you switch between apps, not just the active one.
Windows Clipboard has been powered up. You can now paste previous items from the Clipboard’s history. And your Clipboard will roam across all of your devices, so you can clip items from a device other than the one you’re currently using.
There are a variety of other improvements, including the addition of a dark theme to File Explorer and improved search. A variety of bugs have been fixed, including one in which the VPN wasn’t working, and another in which a .dll would cause explorer.exe to crash every few minutes. There are, however, a number of known issues, including one in which your PC appears to be stuck on “Preparing to install” when it gets to 80% to 100% of updating. It will take 30 minutes or more to complete the installation from that point.
(Get more info about Insider Preview Build 17666.)
Windows 10 Insider Preview Build 17661
Release date: May 3, 2018
This build adds a variety of new features, including tweaks to screen capture in Windows 10. Screen Sketch, which lets you annotate screen captures and was originally part of Windows Ink, is now its own app. In addition, pressing WIN + Shift + S brings up a toolbar that lets you capture a rectangle, free-form snip or the entire screen. (In the current version of Windows, that key combination only lets you capture a rectangle.) You’ll also get a notification that, when clicked on, lets you open the snip in Screen Sketch for annotation and sharing.
There are a number of other minor improvements, including one in which Microsoft’s Fluent Design is being extended to Task View, whose background gets a new soft blur look. This build also adds to support for the High Efficiency Image File Format (HEIF), introduced in Build 17623, and lets you do things such as rotate HEIF images.
There’s also the usual assortment of changes and fixes, including fixing an issue in which using arrow and Page Up / Page Down keys didn’t work to scroll webpages in Microsoft Edge. There are a number of known issues with this build, including one in which some notifications from Action Center may cause regular Explorer.exe crashes.
(Get more info about Insider Preview Build 17661.)
Windows 10 Insider Preview Build 17655
Release date: April 25, 2018
This extremely minor build has only one new feature: Mobile Broadband (LTE) connectivity on Windows is getting a makeover. Microsoft says that its new Net Adapter framework “introduces a new, more reliable, network driver model that inherits the goodness of the Windows driver framework while bringing an accelerated data path.” Only PCs that support Mobile Broadband — that is, use cellular networks — will use the new framework.
Aside from that, there are only two changes and fixes. The brightness toggle in the Battery flyout in the Notification Area of the taskbar has been removed. Microsoft says that will make for an improved user experience. The build also fixes in issue in which Microsoft Edge didn’t work when dragging a favorite from one folder to another.
There are a variety of known issues in this build, including one in which the mouse cursor may disappear when hovering over certain user interface elements and text fields, and another in which the arrow and Page Up / Page Down keys don’t work to scroll web pages in Microsoft Edge. There are also a variety of issues with the new Sets feature, and with Microsoft Office working properly with this build.
(Get more info about Insider Preview Build 17655.)
Windows 10 Insider Preview Build 17650
Release date: April 19, 2018
This very minor build gives the Windows Defender Security Center a design refresh using Microsoft’s Fluent Design elements, including adjusting the spacing and padding around it and dynamically sizing the categories on the main page if more room is needed for extra info. In addition, the Windows Defender Firewall now supports Windows Subsystem for Linux (WSL) processes.
There’s also the usual assortment of changes and fixes, including an issue in which File Explorer would always open with the Ribbon minimized, rather than remembering how you’d left it. There are a number of known issues with this build, including one in which when a PC resumes from sleep, the desktop may be momentarily visible before the lock screen displays as expected.
(Get more info about Insider Preview Build 17650.)
Windows 10 Insider Preview Build 17643
Release date: April 12, 2018
This minor build introduces integration between the Microsoft Office and the new Sets feature that lets you group documents, web pages, files and apps in tabs, and then work with them. In addition, if you use a SIM on a mobile device, it will tell you how much data you use while you’re roaming. There are also the usual improvements and fixes, including fixing an issue in which Reveal would sometimes not appear if you moved your mouse over and off an element repeatedly, and another in which there was noticeable screen flicker when the screen adjusts after a device is rotated.
There are number of known issues with this build, including one in which if you open Settings and click on any links to the Microsoft Store or links in tips, Settings will crash, and another in which when a computer resumes from sleep, the desktop may be momentarily visible before the Lock screen displays as expected.
(Get more info about Insider Preview Build 17643.)
Windows 10 Insider Preview Build 17639
Release date: April 4, 2018
The big news in this build is the new features added to the Sets tool that let you group documents, web pages, files and apps in tabs, and then work with them. You can now drag and drop apps between tabs and use Alt + Tab to switch between tabs. Sets also gets its own section in Settings, available via Settings > System > Multitasking. There are also new context menu options when you right-click on a tab set, including “close other tabs,” “move to new window” and “close tabs to the right.”
Beyond that there’s an assortment of changes, improvements and fixes, including a fix for an issue that caused duplicate entries in Disk Management, and one in which some Windows apps silently terminated when minimized.
There are several known issues with this build, including one in which if you open the Settings app and click any links to the Microsoft Store or links in tips, Settings will crash.
(Get more info about Insider Preview Build 17639.)
Windows 10 Insider Preview Build 17634
Release date: March 29, 2018
In this build, search is now available in the Windows 10 calendar. You can search by name, location, people included, or words in the event body. It works for Outlook, Hotmail, Live and Office 365 accounts, but not yet Exchange Server, Gmail, Yahoo or other IMAP calendars. In the build, Cortana Show Me supports voice commands, such as for updating Windows, uninstalling an app, discovering Bluetooth devices and more. There is also an assortment of minor fixes and improvements, including for a bug in which Microsoft Edge could crash when certain extensions were turned off, and another in which typing in the Microsoft Edge URL bar immediately after opening a new tab sometimes resulted in the letters appearing out of order.
(Get more info about Insider Preview Build 17634.)
Windows 10 Insider Preview Build 17627
Release date: March 21, 2018
This very minor build includes only small bug fixes, including for one in which an emoji panel wasn’t working, and another where if you tried to open an online-only file from OneDrive that hadn’t been previously downloaded to your PC, your PC might perform a bug check.
(Get more info about Insider Preview Build 17627.)
Windows 10 Insider Preview Build 17623
Release date: March 16, 2018
This build rolls out the High Efficiency Image File Format (HEIF), a container that uses modern codecs like HEVC to improve image quality, compression and capabilities compared to earlier formats like JPEG, GIF and PNG. In addition to single images, HEIF supports encoding image sequences, image collections, auxiliary images like alpha or depth maps, live images and video, audio, and HDR. The Windows Defender Application Guard (WDAG) also gets performance improvements.
There are also the usual minor changes and fixes, including for an issue that crashed the touch keyboard when focus was moved to certain password fields, and another in which touch couldn’t be used to interact with the Timeline scrollbar.
(Get more info about Insider Preview Build 17623.)
Windows 10 Insider Preview Build 17618
Release date: March 7, 2018
This preview reintroduces a major new Windows 10 feature, Sets, that lets you group webpages, documents, files and applications on individual tabs in Windows Explorer. (Sets made a brief appearance in the preview builds for the April 2018 Update but was pulled because it wasn’t ready for general release.) Apps such as Mail, Calendar, OneNote, MSN News, Windows and Microsoft Edge can be grouped. Microsoft says support for more apps will come in the future.
Windows Mixed Reality is buggy in this build. Microsoft notes that it “runs at a very low frame rate (8-10fps) that could result in some physical discomfort. And there are multiple crashes at startup that will cause Windows Mixed Reality to not work.”
There are also the usual minor changes, improvements and fixes, including for a bug in which three- and four-finger gestures on the touchpad were unresponsive, and another in which navigating to Themes Settings crashed Settings.
(Get more info about Insider Preview Build 17618.)
Windows 10 Insider Preview Build 17604
Release date: February 14, 2018
This is the first preview for Redstone 5, and includes no new features — it’s essentially the same as the Preview Build 17101 for Redstone 4. However, Microsoft warns that this and other early Redstone 5 builds may be buggy, and adds, “So, things will likely be a little rough as they normally are at the beginning of the development cycle for a new Windows 10 release. If this concerns you or makes you uncomfortable, you may want to consider opting out of Skip Ahead.”
(Get more info about Insider Preview Build 17604.)
