These are built to last. I installed Linux Mint and run it 24/7. I added 16GB of RAM for $45 to give me 32GB. I have purchased several reconditioned Dell Micro Form Factor computers over the years and have had no problems with any of them. The first thing I do is open it up and brush and blow the dust out. Especially in the fan. This varies by the company that reconditions them. It seems some don't bother to clean them much but it's a very simple fix.I recently tried a couple of new inexpensive Chinese made micro computers but had nothing but trouble with both of them. One had to be returned as it could not even be turned on. New Dell computers are much more expensive so I'll stick to the reconditioned ones as they become available.