The iMac keeps randomly freezing and shutting down on me. This happened when I first took it out of the box and started setting it up but I figured it was because I just received it and it needed time to start up. Since receiving the item, it seemed fine I would only spend 10 to 15 minutes on it with no issues. Yesterday was the first day. I actually sat down and tried to complete some work within a few hours. It started to randomly pause and restart after the third time I tried to look up some solutions, one of them was said the software probably needed to be updated so I updated it and the issue still continues. Now, I am trying to erase the data so I can send it back to either be repaired or refunded and the erase assistant isn’t available. When I try to reset the disk, the erase button is grayed out. This is a very frustrating situation.