I recently bought an M2 SSD and wall went well with installation. Then a few months ago I started up my PC and the drive wasn't there, after some trouble shooting I found that my BIOS setting that allows the M2 SSD to be detected was changed somehow. I ignored this thinking it was a one-off occurrence but just now the same thing happened. Any reason as to why this is happening? Also I can't recall the first time it happened clearly but this time the computer shutdown was due to a power outage if this helps.