Windows: KB5034439 fails to install

Appears to be an issue with Microsoft. Ongoing for several months

https://www.reddit.com/r/sysadmin/comments/1ar086p/has_anyone_gotten_kb5034439_to_install_on_windows/


NOTE: Extending EFI partition to 1 GB did not resolve. Nor did clearing Software Distribution folder


Resolution (not ideal) - Add registry key to bypass update:

After 4x Patch Tuesday's of frustration, today I have had the following response from MS Premier Support regarding KB5034439 and W2K22 VMs without a WinRE partition:


**Answer:**Microsoft will not release a fix for this issue.


In our case, we don't have WinRE partition, we can try below workaround to avoid getting KB5034439.


reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion" /f /v WinREVersion /t REG_SZ /d "10.0.20348.2201"