KB5070312: Windows 11 File Explorer to become responsive again with new build 22631.6269

Despite having reached its end of support this week, Microsoft has released today a new Release Preview build for Windows 11 Insiders. The new build, 22631.6269, under KB 5070312, is for Windows 11 23H2 flighters, and is a rather small build with only a very small set of changes. However, there is a very important File Explorer update as Microsoft notes that the build fixes the issue of it not responding properly.

There are some other improvements too. The full changelog is given below:

• [Country and Operator Settings Asset (COSA)]
  • Fixed: This update brings profiles up to date for certain mobile operators.
• [File Explorer]
  • Fixed: This update addresses an issue where File Explorer sometimes didn’t respond to mouse clicks until you closed and reopened it.
  • Fixed: This update addresses an issue with extracting .tar files when file or folder names contain more than 34 commonly used Chinese characters.
• [Group Policy and Configuration]
  • Fixed: This update addresses an issue where the HideRecommendedSection policy didn’t work in Windows 11 Enterprise multi-session environments, such as Azure Virtual Desktop (AVD). Even when configured using Group Policy or Configuration Service Provider (CSP), recommendations still appeared in AVD sessions.

The official blog post is linked here on Microsoft's website.

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Posted Friday 14 November 2025 at 6:12 pm AEST (my time).

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