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Windows 10 KB5034441 security update fails with 0x80070643 errors

ID: 60765183-d376-58d6-bd2f-64fa035a1a20

STIX ID: report--60765183-d376-58d6-bd2f-64fa035a1a20

Feed Name: Bleeping Computer

Threat Score
55/100

Date Published: 2024-01-10

Date Updated: 2026-04-20

Author: Lawrence Abrams

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Windows 10 systems are failing to install Microsoft's KB5034441 (the WinRE update that addresses CVE-2024-20666, a BitLocker encryption bypass) with 0x80070643 errors because the Windows Recovery Environment partition on many devices is too small; Microsoft published manual disk-resizing instructions and PowerShell scripts to update WinRE directly, but users may still see failures and are advised to back up data or wait for an automated fix.

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