When remotely login into the Windows 2012 server, it pops reboot countdown of 15 minutes.

Damn! i don’t want to reboot now! Stop it!

here is the solution to stop the reboot countdown after updates:

c:\> net stop WUAUSERV

or in services, stop the service “Windows Update”.

after that, countdown stopped, do your things and reboot manually.

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# What sort of halfwit thought that allowing a server to reboot automatically when a user logs in was a good idea?

# Same person who decided to keep the crazy tile theme on a server OS?