Windows 10 Diagnosing why my PC restarted on its own

[gweebco]

Hi there. I was trying to figure out why my PC woke woke up from sleep and/or restarted. i ran the 'systeminfo' command and saw that the system boot time happened last night so it must have happened without my intervention. i then checked the event viewer and saw that a 'servicing' event happened at the same time, details: 'Package KB5012599 was successfully changed to the Installed state.'
What is this service? Was this a windows update? If so why did it restart my PC without asking me? I had programs open which I didnt want it to close.
Any help would be much appreciated, thanks.

 

[ussnorway]

yes Windows doesn't need your permission to do updates and can take control of your system when they want to make changes

 

[gweebco]

I see...thanks for the reply. Is there any way to stop this? I like to be able to keep my work documents open etc and dont like the idea of windows shutting them of its own accord...