This was a "renewed" unit, so it's fair to assume the previous owner had some trouble with it. When I hooked it up, it worked fine, started right up, and ran what I needed to run. I use it at work, and that means spreadsheets, and web-work. The only problem was, every morning, at start-up, it said "clock not set, run-setup". Not really a deal breaker, because when it started, it showed the correct time. Before I called support, I figured I would take a stab at it, I know a dead motherboard battery will cause a loss of time settings, so I replaced the cr2032 battery, in about 2 minutes, for $2 now it's perfect, much faster than the old POS I was using...HAD TO upgrade to windows 10, don't ya know...I wonder if it was returned because of a dead, or improperly seated battery. Anyway, I downrated it for gaming, because the on-board video would not cut it in the gaming world, but maybe with a good video card it would be okay. For non-gaming work, this is excellent, I recommend it. I didn't give it a tech support rating, because I never called em, I hope that didn't lower my rating. Enjoy!