First, I took one star off because the first unit shipped to me came with a hole in the box, mostly bad on the shipper; however, after the return, it took longer to get the replacement unit than getting the original in the first place.  I bought this to replace a computer I had for ten years whose hard drive decided to die.Once receiving the replacement, things went very smooth with installations and moving backup files onto the new machine.  I have been using the new machine for a month and it is doing fine.This refurbishment came with Win10 installed and a trial copy of Office 365.  Trying to install an older copy of Office was a bit more trouble because of that, but uninstalling all three versions of Office 365 that were trying to get me to buy licensed copies did the trick.  The performance of this machine is doing better than another refurbished machine (laptop) I bought for my son, but that may be his care and use more than the machine.