A virus or pest and the machine is wiped out. Or a gaffe by the owner. So this HP and most Windows PCs are far from reliable.

On top of that most are 5 or less year designs. We are seeing a slight improvement with the slow dissipation of the BAD CAPS problem (see google) but you can never be sure if your product has those. See how this is plaguing the HDTV industry today.

My all in one is ... a laptop.
Bob