Microsoft Releases PowerShell Script for Windows 10 0x80070643

Before understanding the PowerShell script for Windows 10 0x80070643, let’s look back on this update issue.

Windows 10 KB5034441 0x80070643 Error Code

Windows has a BitLocker Security Feature Bypass vulnerability – CVE-2024-20666. Attackers can use this flaw to bypass the BitLocker Device Encryption feature on your device to access encrypted data. This affects Windows 10 & 11 and Windows Server 2022/2019/2016.

To eliminate the Windows bug, Microsoft released some Windows Recovery Environment updates. For Windows 10, KB5034441 was rolled out on Jan 9, 2024, to address CVE-2024-20666. However, Windows 10 KB5034441 failed to install with the 0x80070643 error code in Windows Update. Sometimes, you get the message “Windows Recovery Environment servicing failed. (CBS_E_INSUFFICIENT_DISK_SPACE)”.

The root cause is usually due to the insufficient size of the recovery partition – 250 MB of free space is required. To fix KB5034441 not installing, you can manually resize your partition to install the WinRE update. In our previous post – KB5034441 Fails to Install with Code 0x80070643 – Fix It Now, you can find the steps to follow. Besides, Microsoft provides an official fix to solve the error.

PowerShell Script for Windows 10 0x80070643 – How to Use

The PowerShell script comes from Microsoft to help automate updating the WinRE partition on Windows 10/11 to address the security vulnerability for BitLocker encryption bypass. And you need to run the script with admin privileges.

Based on Windows versions, Microsoft offers two available scripts:

• PatchWinREScript_2004plus.ps1 – for Windows 10, version 2004 and later (including Windows 11)
• PatchWinREScript_General.ps1 – for Windows 10, version 1909 and earlier

Choose a proper one depending on your Windows operating system and then follow the steps below to run the PowerShell Script for Windows 10 0x80070643 installation failure error code.

Step 1: Before making any changes, it’s crucial to create a backup for your PC since there is always a risk of damage to system partitions when adjusted. Speaking of PC backup, we strongly recommend running MiniTool ShadowMaker and going to Backup to back up your important files or create a system image.

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Step 2: Go to Microsoft Update Catalog to download an architecture-specific Safe OS Dynamic Update package – the latest version of this update is recommended.

Step 3: In the KB5034957 article from Microsoft, find and copy the correct PowerShell script suited for your Windows version.

Step 4: On Windows 10, open Notepad, paste the script you have copied, and click File > Save As. Then, choose All Files as the file type, and enter a name with the .ps1 extension.

Step 5: Right-click on this PowerShell script for Windows 10 0x80070643 and choose Run with PowerShell.

Step 6: When asked for the package path, you need to enter the complete path and name of the Safe OS Dynamic Update you downloaded. Then, the script is running.

Step 7: After running this script, you need to get Microsoft’s Show or Hide Tool, run it, and unhide Windows 10 KB5034441, which can block Windows Update from installing this buggy update and showing the 0x80070643 error code.

Final Words

When KB5034441 fails to install, what should you do to address it? Besides manually resizing your partition, you can run a PowerShell script for Windows 10 0x80070643 to solve BitLocker Encryption bypass vulnerability by following the step-by-step guide.

To always keep your PC safe, you had better have a habit of backing up data or a system. Run MiniTool ShadowMaker for this backup task.

MiniTool ShadowMaker TrialClick to Download100%Clean & Safe