KB5034220 Windows 11 23H2 Build 22635.3139 Beta Channel to Insiders

Windows 11 Insider Preview Build 23424 KB5034220 ni_prerelease changes, download link, and the ways to install.

Beta channel users are obtaining another new update with fixes for Task Manager and dwm.exe crash. The release is KB5034220 and this changes the version number to Windows 11 23H2 22635.3139. This is actually a maintenance update that brings only minor corrections for Windows 11 Moment 5.

The full name of the build is “Cumulative Update for Windows 11 Insider Preview ( (KB5034220)”. This is available in the ni_prerelease branch.  The precise build name is 10.0.22635.3139.ni_release_svc_betaflt_prod1.240121-0940. To get the most recent features and improvements in the Beta channel, navigate to Settings > Windows update and turn on “Get the latest updates as they are available”.

KB5034220 Windows 11 23H2 Build 22635.3139

Windows 11 Build KB5034220 fixes

Here is the changelog:

Bug fixes gradually being delivered to the Beta Channel with toggle on*


  • KB5034220 includes a handful of fixes to improve overall reliability.
  • This release fixed a dwm.exe crash impacting some Insiders in the previous flight.

Task Manager

  • Finally, fixed an issue impacting Task Manager reliability on the last few builds.

See: New LCU KB5034218 Windows 11 Build 22635.3130 23H2 rolled out to Beta insider

How to download KB5034220 23H2 version and install

To receive this minor update, follow the method:

Via Windows update

  • Press “Winkey+I” and select “Windows update”.
  • Click “Check for updates” and stay for some time when the cumulative update is downloaded.
  • Select Restart now and wait until the build is installed.

Using Windows 11 build 22635.3139 ISO

Source: Windows blog.

That’s all!!

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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.