I have a Dell XPS Studio desktop that until this week ran flawlessly. Problems began with seemingly random BSOD/reboots after a few minutes of booting up. The BSOD identified various errors at different times (i.e. PFN_LIST_CORRUPT, DRIVER_IRQL_NOT_LESS_OR_EQUAL, ntdll.dll error) When I boot into Safe Mode, the screen goes black after a few minutes. I can hear the hard drive continuing to access files. I'm obsessive about creating restore points, but received a shock when I went to use them and found none had been saved (or else they were deleted). Tried booting into Safe Mode with Command Prompt and running sfc /scannow, but it, too, goes to black screen after a few minutes. Ditto with running Malware Bytes.
Has anyone encountered anything like this? Any help would be most appreciated.