Update: BIOS and Win 10 are now reporting imminent disk drive failure after only a few weeks. Checking the SMART data, it's reporting bad drive, excessive reallocated sectors, which is a guarantee of imminent death. So much for 'certified' refurbished. If it sounds too good to be true.....PC is clean, works just fine. BUT, and it's a big one, the 'wi-fi' it claims to have is actually a USB dongle, and it is pretty much useless. Constantly disconnects, unusable. It's a Realtek basically obsolete very cheap device that has had a long history of connection issues. So, if you're going to use a hardwired network connection, or if you replace the junk dongle, it's a good deal. You'll probably want to replace the kbd and mouse, they're both super-cheap generic Chinese junk. The box the mouse comes in calls it a "USB Mo". Why? Because the box wasn't wide enough to print 'Mouse'. Gives you an idea of the quality. Still, the PC itself is a good deal.