NewApp Digest
search bot

0x80070643 error

Microsoft reiterates it may never truly be able to fix Windows Update 0x80070643 error
Winsage
July 13, 2025

Microsoft reiterates it may never truly be able to fix Windows Update 0x80070643 error

In April, Microsoft released dynamic updates for Windows 10, including KB5057589, which was intended for the Windows Recovery Environment (WinRE). Users faced issues with the 0x80070643 error code despite having sufficient disk space. Microsoft decided not to reoffer this update to users who installed it and promised a more reliable update. In July 2025, Microsoft released a new WinRE update, KB5063523, which automatically applies the Safe OS Dynamic Update (KB5062691) to enhance recovery features. This update resolves the previous installation issue, although the error code may still appear. Additional dynamic updates released on July 8, 2025, include KB5062682, KB5062787, KB5062788, KB5062691, KB5062689, and KB5062692, all aimed at improving Windows setup and recovery environments. These updates will be automatically downloaded and installed via Windows Update.
Microsoft retires Windows updates causing 0x80070643 errors
Winsage
August 14, 2024

Microsoft retires Windows updates causing 0x80070643 errors

Microsoft has retired several updates released during the January 2024 Patch Tuesday due to installation errors linked to the 0x80070643 error when installing Windows Recovery Environment (WinRE) updates. The updates affected were KB5034441 for Windows 10, KB5034440 for Windows 11, and KB5034439 for Windows Server 2022, which aimed to address a critical vulnerability (CVE-2024-20666) related to BitLocker encryption. The error was caused by insufficient space in the WinRE partition, requiring an additional 250 MB of free space. Microsoft announced that users must manually expand their WinRE partitions to resolve the errors, as an automated fix will not be provided. New replacement updates—KB5042320, KB5042321, and KB5042322—have been introduced, which will only be available to users with adequate free space in their WinRE partitions. Microsoft offers guidance for users to either follow manual steps or use a script to resize their partitions to ensure they can install the new updates.
Fake IT support sites push malicious PowerShell scripts as Windows fixes
Winsage
June 30, 2024

Fake IT support sites push malicious PowerShell scripts as Windows fixes

Fake IT support sites are offering malicious PowerShell "fixes" for common Windows errors like the 0x80070643 error. Threat actors are using compromised YouTube channels to add legitimacy to these sites, which ultimately install information-stealing malware on devices. Users should be cautious when seeking solutions online and only download software and fixes from reputable sources to avoid falling victim to malicious actors.
Search