Black Screen Problem with no Task Manager Access

[John Morris2]

I have a black screen problem I cannot solve. I have a HPE-450t tower running Windows 10 that has run fine for years. I recently went away for two months and shut down the PC before I left. When I returned, upon startup, I got a black screen. I used Ctl-Alt-Del to reboot a couple of times – no help. I then tried Task Manager a couple of times and although it loaded, I was unsure what to force stop, took no action, and rebooted. Then Task Manager quit loading when I called for it. At one point, a McAfee bubble popped up saying that

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