Pc woken up from sleep.

[probablydumb]

Alright so i went to take a shower and my pc was asleep since it was idle for so long, and right when i came back i heard my fans blasting (they do when i open my pc or make it return from being asleep, and i have a remote where i press a button and it goes back to quiet) so i was like "That's strange" I thought discord woke it up since i got a call from my friends but when i went in event viewer it told me it went to sleep reason:idle and then i get the The system has returned from a low power state.Wake Source: Timer - Windows will execute 'NT TASK\Microsoft\Windows\UpdateOrchestrator\Universal Orchestrator Start' scheduled task that requested waking the computer.And the one a minute later is Windows Update started downloading an Update.So did my pc get woken up from sleep since windows wanted to install an update or?