Hello,
When you try to apply this update on a PC that has no recovery partition, the update is unsuccessful, and you will receive the error 0x80070643 ERROR_INSTALL_FAILURE.
You do not need this update if the PC does not have a recovery partition. In this case, the error can be safely ignored.
Microsoft are working on a resolution and will provide an update in an upcoming release
More details please refer to this link:
https://support.microsoft.com/en-us/topic/kb5034439-windows-recovery-environment-update-for-windows-server-2022-january-9-2024-6f9d26e6-784c-4503-a3c6-0beedda443ca
Best Regards,
Hania Lian
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