When you order a machine like this, you get the bare bones!  This means more storage space for you and the ability to set up the machine like you wish.  The activation of Windows Pro was simple.  The machine is quiet as a mouse.  No heating issues at all!  All USB ports work, and there are plenty.  We put the machine through some software stress, multiple windows, multiple browser tabs, drop box, streaming and other situational computer tasks, at the same time.  This machine held up like a champ, didn't even wheeze!  We bought this for our office and it has been a workhorse.  The machine boots up SUPER FAST.  We were so happy to find that the machine was clean, no hardware issues and the case looked new.  I hadn't realized it was a horizontal case when I bought it, but we love that now.  We were able to put it right on top of the desk.We didn't need huge storage space, but I believe this machine is expandable. It fits our needs here in a 4 person, international office perfectly.  We use drop box and cloud for most all our storage anyway.The biggest issue we had was networking all the rest of our office computers to this machine with the Windows 10 Pro.  IT WAS NOT a networking problem with this computer's hardware, it is a known issue with Windows 10 recent updates, starting with the April 2018 update.  After an entire day of troubleshooting this issue, and setting different settings inside windows, we were successful.  To that point it was crazy but we are so happy now.Do not hesitate to order and know that this is the fastest and best refurb we've ever ordered, so much better than our last one, a Dell.  Very satisfied with our purchase.