Windows 10 users worldwide are facing difficulties installing the latest Patch Tuesday update – KB5034441. This update was intended to fix vulnerabilities in the BitLocker encryption service that allowed unauthorized access to encrypted data. Unfortunately, many users are experiencing installation problems, with an error message with the code 0x80070643 often being displayed.
After analyzing the situation, Microsoft determined that the main cause of the problem is a too small Windows Recovery Environment (WinRE) partition that cannot accommodate the new winre.wim image. To solve this problem, Microsoft suggested increasing the size of the recovery partition by reducing the C: partition by 250 MB and creating a larger WinRE partition. Instructions for managing the Windows Recovery Environment and disk partitions can be found on Microsoft’s website.
However, for users who are not comfortable manipulating the system, caution is advised. There is a risk of data and partition damage when performing these operations.
An alternative solution proposed by Microsoft is to use PowerShell scripts to automate the installation of the BitLocker patch for CVE-2024-20666 vulnerability in WinRE. These scripts mount the WinRE partition, copy the WinRE.wim image, and then unmount the partition, allowing the most up-to-date files to be included in the WinRE partition. As a result, the installation of KB5034441 patch is unnecessary. However, even after applying this solution, Windows Update may still attempt to install KB5034441, leading to additional errors.
The PowerShell scripts and the Microsoft Show or Hide Tool, which allows hiding the KB5034441 update, are available for download from Microsoft’s website. While this solution is not perfect, it can help update BitLocker, which is crucial due to the existing threat.
Users are also reporting other problems such as system slowdown and compatibility issues with applications and drivers. Microsoft is actively working to resolve these issues, and further updates can be expected to address them.
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