KB5017385 Windows 11 Build 22623.730 and 22621.730 Shipped to Beta Insider

Windows 11 Insider Preview Build 22623.730 and 22621.730 (KB5017385) changes, improvements, bug fixes, and direct download links.

KB5017385 Windows 11 Build 22623.730 and 22621.730

Another build laden with new features such as tablet-optimized Taskbar, modified System tray, etc, and several improvements hit the Beta channel for insiders. KB5017385 is the cumulative update that increases the version to Windows 11 Build 22623.730 and 22621.730. New features are disabled in 22621.730 and enabled in the remaining.

Full name of this release is Cumulative Update for Windows 11 Insider Preview (10.0.22621.730) (KB5017385). Build number is – 10.0.22621.730.ni_release_svc_prod2.220916-1226. Let’s see the detail of this update –

KB5017385 Windows 11 Build 22623.730 and 22621.730 Beta Insider

Here is the changelog –

What’s new in Build 22623.730

Tablet-optimized taskbar

This build once more brought out the touch-optimized taskbar which design is cozy for tablet devices. We have previously covered the way to enable it in this post – How to activate Tablet optimized Taskbar in Windows 11.

Tablet optimized taskbar

Subsequent to installing this update, taskbar will automatically transition to this optimized form when you fold back or disconnect the keyboard on your 2-in-1 device. This feature is specifically for tablets. There will be no difference on PCs or laptops.

Expanded and collapsed forms of taskbar improve the comfortability of the tablets.  The collapsed state gives additional screen space and prevents mistakenly invoking the taskbar when you’re holding your tablet. Whereas the expanded state provides better usability with touch. You can switch between the two states by swiping up and down from the lowermost part.

To access this feature navigate to Settings => Personalization => Taskbar => Taskbar behaviors. This is also named Optimize taskbar for touch interactions when this device is used as a tablet enabled by default.

Updates for System Tray

2nd feature is the update for System Tray that affects both PC and Tablet. The build ships hover treatment and rounded focus on all icons in the bottom right.

After receiving this build, drag and drop or rearrange for system tray icons is not possible.

Improvements and Changes in Windows 11 Build 22623.730

File Explorer

Also, there are improvements in Home Search for File Explorer. This will now search recently opened cloud files from Microsoft 365. This function is for the users who are either signed with their Microsoft account or have their Microsoft account connected to the profile via Settings. You will see recent file activity for cloud files in Home search when in details view. Using, activity, file extension, and location you can also search Microsoft 365 cloud files. You will experience results when typing. The best part is the full search result page will update live without pressing enter.

Windows 11 Build 22623.730 bug fixes

Updates for System Tray

  1. The build has settled flashes in the taskbar.
  2. Taskbar or its icons like search often got stuck in the incorrect colors of themes. This issue occurs when switching between dark and light themes. This build has fixed this.
  3. Experts fixed Date and time on taskbar that gets stuck cutting off on the side of the screen when you modify system tray.

Start menu

  1. KB5017385 LCU fixed Start menu crashes that occur for some Insiders.
  2. Furthermore, it fixed Start menu recommended section that might unexpectedly display one column instead of two.
  3. In case you change the file type for a specific app, the icon for any of those file type shown should now update in the recommended section.

Windows 11 Build 22621.730 and 22623.730 bug fixes

  1. Windows 11 22623.730 fixed a problem that affects some processors. This problem occurs when you turn on kernel Direct Memory Access aka DMA protections and Hyper-V.
  2. The new version fixed the Japanese IME issue. Also, Text reconversion becomes unsuccessful when you use some third-party virtual desktops.
  3. Beta update 22623.730 fixed application stops responding problem. This problem might happen when the input queue overflows.
  4. The rollout fixed different Microsoft Office 365 apps sign in issues. This problem affects Teams, Outlook, Word, and so on.
  5. KB5017385 CU fixed a graphics drivers problem that uses d3d9on12.dll.
  6. The Cumulative update fixed Microsoft Store update fails.
  7. Also, the experts in the team fixed a LanmanWorkstation service problem. This service leaks memory when you mount a network drive.
  8. The experts fixed the Miracast User interface issue. Sometimes the interface closes too soon when casting to devices that use the DeviceObjectType:Aep.
  9. They fixed Task Manager problem. It stops working when you switch between light and dark mode or change the accent color.
  10. After this rollout, When you format these characters as bold, the width size is incorrect.
  11. Windows 11 beta 22623.730 and 22621.730 fixed solved input method editors aka IME from Microsoft and third parties. They stop working when you exit the input Method Editor window. This takes place when the “Input Method Editor” uses Text Services Framework (TSF) version 1.0.
  12. The experts fixed a problem that affects Microsoft Edge IE mode. The browser stops you from opening web pages. This problem prevents you from configuring Network Isolation Policies and occurs when you enable “Windows Defender Application” Guard aka WDAG.
  13. The titles of pop-up windows and tabs in Microsoft Edge IE mode are not correct.
  14. LCU KB5017385 fixed an issue that stops the credential User Interface from displaying in IE mode.
  15. Windows 11 build 22623.730 and 22621.730 rollout solved the certificate mapping problem and when this process fails, lsass.exe stops working in schannel.dll.

Known issues


  1. Experts in the team are examining reports that audio stopped working for some Insiders in recent Beta builds.

Tablet-optimized taskbar

  1. Nevertheless, the team has worked on this issue, the taskbar infrequently flashes during transitioning between tablet posture and desktop posture.
  2. This takes more time to transition to the touch-optimized version when switching between tablet posture and desktop posture.
  3. When you will use the right or left edge gestures this can end up in the Notification Center and Widgets (in sequence) or look truncated or overlapping with the taskbar.
  4. In KB5017385 LCU, When you use the bottom right edge gesture to view Quick Settings, the taskbar sometimes stays stuck in the expanded state, instead of dismissing to collapsed state.
  5. In the Cumulative update for the Beta channel, the taskbar can at time collapse, when it should be expanded when there are no running windows on the desktop.

Turn on new Outlook for Windows to try it out

If you’re an Office insider member and at the same time Windows Insider then you can try out the new Outlook for Windows. Members of Beta Channel or Current Channel (Preview) will view a Try the New Outlook toggle located in the top-right corner of classic Outlook for Windows. Simply turn this on and follow the guidelines on the screen.

Windows 11 Insider Preview Build 22623.730 and 22621.730 (KB5017385)

KB5017385 Windows 11 Build 22623.730 and 22621.730 download links –

  1. x64.cab,
  2. arm64.cab
  3. SSU-22621.440-x64.cab
  4. SSU-22621.440-arm64.cab

Source – Windows blog.

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Topics:  Windows Insider
About Sunita
Love to play with Windows 11 and 10. Suggestion - Going for Registry change or system files edit then remember to take a backup or create a restore point before Starting.