Greetings. Today, the second time I powered on my computer it didn't detect the hard drive. I re-plugged in the cords and it seemed fine. The thing is, before that it showed an error Unexpected_store_exception. I looked it up and it told me to go on event viewer. I saw plenty of errors and warnings, especially some in system32, msinstaller,adobe stuff, and other things. Is this normal, or could it be signs of system failure or viruses? I have scanned my pc using Kaspersky many times recently using Full scan, and my threat protection is on high with all protections enabled. Thanks, Mark.