Microsoft retires Windows updates causing 0x80070643 errors

Microsoft retires Windows updates causing 0x80070643 errors

August 14, 2024 at 02:31PM

Microsoft has retired Windows security updates from January 2024 Patch Tuesday due to 0x80070643 errors when installing WinRE updates. The company acknowledged the issue in January, caused by problematic KB5034441, KB5034440, and KB5034439 updates. After months of investigation, Microsoft announced no automated fix, instead advising users to manually expand their WinRE partitions. Replacement updates KB5042320, KB5042321, and KB5042322 are now available, along with manual steps or a dedicated script for preparing WinRE recovery partitions.

Based on the meeting notes, here are the key takeaways:

– Microsoft has retired several Windows security updates released during the January 2024 Patch Tuesday due to the 0x80070643 error.
– The company released updates to fix CVE-2024-20666, a BitLocker encryption bypass flaw, but these updates caused the 0x80070643 errors when installing Windows Recovery Environment (WinRE) updates.
– Users affected by this known issue are required to manually address it by expanding their WinRE partitions by 250 MB to accommodate the new updates, as Microsoft announced in May.
– Microsoft has replaced the buggy updates with KB5042320, KB5042321, and KB5042322, which automatically apply Safe OS Dynamic Update (KB5034232) to the Windows Recovery Environment (WinRE) and provide users with options to prepare their WinRE recovery partitions, either through manual steps or a dedicated script provided by the company.

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