Hello , i have a windows server 2012 which i make in-place upgraded it to windows server 2016 .
since i upgrade it (without format) , i couldn't install any cumulative updates , all other updates i can install without any problem .
but for cumulative updates, i try installing from windows update or standalone update and with different cumulative update not only the current one , and always it reaches 100 % installing then a message appear "we couldn't complete the updates undoing changes don't turn off your computer".
i try sfc/scannow and dism and windows update troubleshooting but always same problem .
if i run "windows update troubleshooting" , it gives "Potential Windows update database error detected" with "not fixed" error .
any advise how can i solve this ? i don't want to full format the server to be able to install cumulative updates