Some users have reported seeing the error code 0x80070643 with the message "ERROR_INSTALL_FAILURE" when attempting to install ...

Microsoft nailed down the issue for the Windows 10 error, but it isn't an automatic fix. To solve the issue, you'll need to manually adjust the WinRE partition size using Microsoft's help guide.

Microsoft says some users might see 0x80070643 installation failures when trying to deploy the April 2025 Windows Recovery ...

In recently updated documentation, Microsoft notified users that Windows PCs might experience error 0x80070643 with an "ERROR ...

Last year there were already error messages during Windows updates with the code 0x80070643. Now it is occurring again.