I received the refurbished  Dell Optiplex 9020, Windows 10,  this morning and it started right up into windows seamlessly.  I uploaded all my files without any problem. Music sounds great, DVD works perfectly and it is super fast. Connected my Scan snap instantly.I am just delighted with this purchase and am impressed.My previous Dell cost $1100 and I honestly do not see any difference.This is an early assessment so I will update if there are any problems within a reasonable amount of time.