Windows 10 Update Error KB5034441 0x80070643 (Need to manually resize partitions to fix the issue)

Update KB5034441 for Windows 10 addresses a security vulnerability that could allow attackers to bypass BitLocker encryption using Windows Recovery Environment (WinRE). However, some users may not be able to install the update and encounter an error /"0x80070643 – ERROR_INSTALL_FAILURE/" or /"Windows Recovery Environment service failed. (CBS_E_INSUFFICIENT_DISK_SPACE)/".

How to Fix Windows 10 Update Error 0x80070643

According to Microsoft, this Windows 10 error KB5034441 0x80070643 occurs because computers may not have a large enough recovery partition to complete this update and cause the update to fail for WinRE. And Microsoft suggests to manually resize your partition to install WinRE update without any errors.

Here is the link, Microsoft suggests how to manually resize your partition to install WinRE update: https://support.microsoft.com/en-us/topic/kb5028997-instructions-to-manually-resize-your-partition-to -install-winre-update-400faa27-9343-461c-ada9-24c8229763bf

Note: It is recommended that you back up your important data before making changes or applying commands.

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