When not playing a game everything is just fine. 1080p videos work perfectly, drivers boot fine and all that so I'm thinking it's not the video card.
After looking up an older topic here (google brought me it) with a similar problem I've already:
Checked for virus
Checked temperatures with both Speed Fan and GPU-Z (35ish not doing anything, 50ish with a video and 65 to 70ish when running a game)
Used the Who Crashed program but it doesn't acknowledge these crashes
and here's 2 shots from the Everest program that was suggested in that other topic:
http://i.imgur.com/lYKILSS.png
http://i.imgur.com/LmkQq3E.png
That second one doesn't seem good or correct.
I don't know what else to try to figure out the problem. I was going to defragment the hard drive next but I doubt that's it.
It's from Dell, an i7 and the video card is AMD HD 5870, approx 3 years old, don't have any other particular specs because I don't know them.