u/Impressive-Map-5991

Hey everyone,
I just found my old surface pro 3 and decided to give it a try to see if she was still working. So I started it and made some windows update(still on windows 8.1). But now it's been like 4hours and it's still downloading an update(still 1 of 2 updates). Does it usually take that much time because she hasn't been awake for a very long time or should I just shut it down to eventually restart the update ?
Thanks in advance for your answers