This PC worked well for about 4 months, then quickly the hard drive crashed and was not readable. This story is about tech support which was good. I dealt with the tech support from the seller and they were very helpful walking me through BIOS diagnostics, and then trying to reinstall Windows 10. I had to make a call to Dell but the machine was too old for their tech support.  It was only when we tried reinstalling Win10 from Flash drive  that we realized the hard drive was toast.Fortunately I purchased Assurion protection and that saved the day. See my review on that product. I am undecided if I will try this refirb PC again or not. Some of the components were very flimsy, the DVD drive didn't but wanted to break. Keyboard and wired mouse were the same, and the hard drive had the same brand cover as those products. The refirb components may not be worth fooling with again.