Bought in Jan 2021, and after light use, started to BSOD and refused to POST.  Contacted seller (TEKREFURBS) and they advised me the warranty period was 90 days, so I was on my own. I replaced the hard drive, reinstalled windows, and so far so good, although it's only been a couple days. The machine itself was clean and blemish free, prospective buyers need to understand if they can't troubleshoot and fix problems on their own, this might not be the best solution for them. Seller was prompt and polite, and the item was as promised.