PC is still rebooting from hibernate :(

My computer, after the Windows 10 update, keeps rebotting after I hibernate. I can't remember if it does this for a regular shutdown. I tend to push the power button to prevent it from booting Windows.
I did go and disable "allow this device to wake" in Device Manager and I don't think I've been using any other peripherals.
Please help me if you get a chance. Let me know what I should try. Thank you.

One other thing (unrelated) that maybe someone can help suggest:
I bought an Oduo bluetooth adaptor but I didn't build my PC with a CD drive. I haven't been able to find drivers and it's unlikely I'll be able to ask a friend to rip an ISO. Am I stuck with this CD I can't use? I don't see a website.

Brink said:

Hello sanman, and welcome to Ten Forums. :)

You can check using the tutorial below to see what is listed in the wake source log to help ID what is waking the PC.

Wake Source - Read Event Viewer Log - Windows 7 Help Forums

I recall trying that in the past. I followed those instructions, now, and the wake source is "Unknown". Hopefully this computer nonsense can be resolved. Bought this thing so it wouldn't crash, installed a clean Win7 and upgraded to Win10. Never can win with these machines. Win10 has been pretty great otherwise and I hope to explore.

My PC is still doing this.

Ok. I've followed those instructions. Hopefully this solution can work.

Computers often seem to require much oil and labor. Maybe it's just me, but I swear there's more internal utilities, file syncing and network i/o apps, anti-virus, etc. than functional communication or media or web browsing apps. At least I got a fast PC.

Nope. No dice. I've found my PC turned back on after hibernating these past few nights.

Wake Source: Unknown, but possibily due to timer - Windows will execute 'NT TASK\Microsoft\Windows\Media Center\mcupdate_scheduled' scheduled task that requested waking the computer.
and also sometimes just says "unknown"

Ok I really remember why I wanted to avoid PC problems and get the highest end PC and had done a clean install. Maybe I should reinstall yet another time, but computers will always do this.

So, now I'm still getting unknown and also sometimes this error:

Wake Source: Unknown, but possibily due to timer - Windows will execute 'NT TASK\Microsoft\Windows\UpdateOrchestrator\Reboot' scheduled task that requested waking the computer.