I'm not going crazy or anything but after I hibernate my PC it just decides to turn back on again without me doing anything. I have checked my BIOS and it shows nothing that will turn it back on.
Any suggestions on what I should check?
Open start > run > cmd and type (or type cmd directly from search): powercfg /lastwake
This will show you from what was the computer waked.
If it was a device, type: powercfg –devicequery [device]
. The device will show at the bottom of the results from the first command.
P.S.
I'm assuming you don't have any peripheral connected...