My parents computer was working until recently, but today they complained to me about it going very slow and restarting on its own. I took it out of standby, and it seemed to be running very slow as they said, and then it switched to a screen that said "resuming windows" followed by a black screen with a flashing underscore. After a little while it goes back to "resuming windows" and then repeats. I shut it off with the power button and powered it on again. It failed to boot, saying that no boot filename was received. Then "Exiting Broadcom PXE ROM." and then "No boot device available - strike F1 to retry boot, F2 for setup utility".
Any suggestions as to what might be causing this? The computer is refurbished and was purchased a couple months ago. Again, it has been working up until this point. Thanks for any help you can offer.