From what I can find of your PSU, it's not terrible. The specs look decent. Though, I didn't find any good reviews.
Check the event viewer, and see if it's logging any errors.
What antivirus software are you using?
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Nothing on event viewer.
Samsung utility is a bootable program.
It also say it might delete files...
And my AV is a combo, Comodo internet security.
I had Eset internet security and the problem was the same.