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Microsoft Halts Windows 11 Update Amid Installation Issues

3/30/2026

Summary

Story summary

Microsoft has temporarily pulled the Windows 11 optional update KB5079391 after users reported installation problems.
The update, released on March 26, caused error 0x80073712 indicating missing assembly files.
It was intended to improve features such as File Explorer and Windows Hello, but did not install on some PCs.
The removal is temporary.
Microsoft plans to improve Windows Update reliability and allow extended pause periods, but a re-release timeline remains unclear.

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Story summary

Microsoft has temporarily pulled the Windows 11 optional update KB5079391 after users reported installation problems.
The update, released on March 26, caused error 0x80073712 indicating missing assembly files.
It was intended to improve features such as File Explorer and Windows Hello, but did not install on some PCs.
The removal is temporary.
Microsoft plans to improve Windows Update reliability and allow extended pause periods, but a re-release timeline remains unclear.