I am running Windows 10 64-bit on an EliteDesk 800 G2 Tower desktop. I recently ran an update to the latest BIOS version, and the update seemed to finish successfully. When the system did a restart after the update, the system would not boot up. It runs for a few seconds, then shuts down for a few seconds, then starts up again for a few seconds, then shuts down again, and so on. I have let the system run like that for up to 20 minutes and it continues to cycle on and off.
I would like to be able to boot up in Safe Mode, but I am unable to have any of the command keys (Windows+R) or PF2) function to be able to access Safe Mode.
I have tried unplugging the power and the modem, separately, and trying again, with no luck.
Unfortunately, I do not have a system backup on disk or on a USB drive, and I did not receive any Windows 10 startup disk with my PC (it was pre-installed). I just purchased this PC in September, so it should still be under warranty.
Any ideas what else I can try to be able to boot up successfully?