Announcement Build Preview Windows 11 Insider 22621.450 and 22622.450 (Beta channel)

Good evening friends! Microsoft has released new preview builds of Windows 11 (version 22H2) under the numbers 22621.450 and 22622.450 (KB5015890) for members of the Windows Insider Beta Program.

  • Assembly 22622.450 – testing of new functions is available.
  • Assembly 22621.450 – new features are disabled by default.

If you are in a group with features disabled by default (build, then check for updates and agree to install an optional update that will make these features available (build

Full build numbers:

  • 10.0.22621.450.ni_release_svc_prod2.220723-2016
  • 10.0.22622.450.ni_release_svc_prod2.220723-2016

Fixes for both builds

  • Enhanced capabilities of Microsoft Defender for Endpoint to detect and intercept ransomware and advanced attacks.
  •  File compression now occurs regardless of file size if Server Message Block (SMB) Compression is configured.
  • Improved storage replication that occurs on low bandwidth networks or congested Wide Area Networks (WANs).
  • We fixed an issue that could cause Windows to display tablet mode features on non-touch devices.
  • We fixed an issue resulting in blank areas in the Task View preview area in some application windows.
  • Fixed a problem that occurred when copying files from network drives. The error code is 0x80070026.
  • Fixed token leak in LsapGetClientInfoEx.
  • We fixed an issue where sihost.exe was consuming too much CPU in some cases.
  • We fixed an issue resulting in Microsoft Edge becoming unresponsive when using IE mode. This issue also prevented interaction with dialog boxes.

Known Issues

  • General:
    • Recent updates to the Beta channel have identified an issue that is causing the Photos app to crash. An updated version of the Photos app with a fix for the issue will be available in the Microsoft Store soon.
    • We are investigating reports of SQL Server Management Studio not launching for some members of the Windows Insider Program.
    • We are investigating reports of some Insiders having audio stop working after updating to Build 22622.440.
  • Windows Explorer
    • The left half of File Explorer’s title bar may not be drag-and-drop or touch-enabled.
    • File Explorer tabs incorrectly display up arrow button next to the address bar. This will be fixed in future builds.

I wish you a successful update!


I am Sanjit Gupta. I have completed my BMS then MMS both in marketing. I even did a diploma in computer software and Digital Marketing.

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