Microsoft will not repair Home windows 0x80070643 errors, guide repair required


​Microsoft has confirmed that it will not present an automatic repair for a identified problem inflicting 0x80070643 errors when putting in latest Home windows Restoration Atmosphere (WinRE) updates.

The problematic updates had been issued throughout the January 2024 Patch Tuesday to repair CVE-2024-20666, a BitLocker encryption bypass vulnerability that permits attackers to entry encrypted knowledge.

The problem impacts Home windows 10 21H2/22H2 (KB5034441), Home windows 11 21H2 (KB5034440), and Home windows Server 2022 (KB5034439).

On affected techniques, it mistakenly exhibits generic ‘0x80070643 – ERROR_INSTALL_FAILURE’ error messages as an alternative of the proper CBS_E_INSUFFICIENT_DISK_SPACE error on techniques with a Home windows Restoration Atmosphere (WinRE) partition that is too small for the replace to put in.

Microsoft first acknowledged this identified problem in January, days after widespread studies from Home windows customers of 0x80070643 errors and the set up failing.

Windows Update 0x80070643 error
Home windows Replace 0x80070643 error (BleepingComputer)

To deal with the set up issues, Microsoft advised Home windows customers they need to increase their WinRE partition by 250 MB to accommodate the brand new replace, providing detailed directions on how to take action. Microsoft later shared a PowerShell script to automate the set up of the BitLocker fixes after the WinRE had been correctly resized

This script mounts the WinRE picture, applies an architecture-specific Protected OS Dynamic Replace you must obtain from the Home windows Replace Catalog earlier than working the script, unmounts the picture, and reconfigures WinRE for BitLocker service if the BitLocker TPM protector is current.

Customers are additionally suggested to make use of Microsoft’s Present or Disguise Instrument to cover the replace after working the script in order that Home windows Replace will not attempt putting in it and displaying an error.

Nevertheless, the guide steps for enhancing the WinRE partition are nonetheless too sophisticated for a lot of Home windows customers, leaving them with an replace that will not set up and a 0x80070643 error in Home windows Replace.

Customers requested to resize partitions manually

Right now, Microsoft confirmed that it will not launch an automatic repair to deal with the problem inflicting the Home windows replace set up 0x80070643 errors and requested prospects to resize the WinRE partitions manually.

“Automated decision of this problem will not be accessible in a future Home windows replace. Handbook steps are essential to finish the set up of this replace on units which can be experiencing this error, “Microsoft stated.

“The WinRE partition requires 250 megabytes of free area. Gadgets which do not need enough free area might want to improve the dimensions of the partition by way of guide motion.”

Microsoft says the customers have two choices:

“Completion of those guide steps will enable the set up of this replace to succeed,” Redmond stated.

For those who determine to resize the WinRE partition manually to repair this problem, it is also extremely advisable that you simply again up your knowledge for the reason that system’s partitions could also be broken throughout the course of.

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