KB5070312: Windows 11 gets optional update that fixes annoying File Explorer bug

Microsoft ended support for Windows 11 version 23H2 earlier this month. While Home and Pro editions are no longer supported, Education and Enterprise are still receiving updates. Microsoft released a new update under KB5070312 (build 22631.6269) as a Release Preview channel build.

And now the company has rolled out that update to everyone as an optional cumulative update or the monthly non-security preview also called the C-release. The update, released as build 22631.6276, fixes an annoying File Explorer bug and more. The full changelog is given below:

Highlights

This non-security update includes quality improvements.

Improvements

Here are the features and improvements that are part of the Normal rollout drop:

• [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.
• [File Management] 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.

You can find the support article here on Microsoft's site.

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Posted Friday 21 November 2025 at 12:53 pm AEST (my time).

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