The troubleshooting of my computer down to the power supply was rather quick. The technicians worked on it while I was in the store but I had to leave and pick it up later. The computer works fine. The only negative thing I have to say is that someone on the geek squad broke a hinge on a front panel on my computer that hides my outlets. There was no compensation or we will try to replace that. They did try to fix it but realized they couldn't. Computers brought in for repairs should leave in the same condition plus the repair as when they are brought in.