I've been searching all over the internet for this one, so far without any luck.
Today I hit the big update button in Windows 7. I updated all my stuff before doing this, then restarted, then hit the button.
After the reboot, the screen went dark after the BIOS logo. At that time, 2 monitors were connected to my NVidia 750 Ti; the one through HDMI apparently got preference to the HDMI monitor - I could see that they got a signal, it's just pitch black.
Somewhere around 30% completion, the screen got back the round circle that was filling up. Some time later (60%-ish), the screen went black again.
After some more reboots, the screen kept being dark. Being scared of ruining something (I should have made a backup - but stupidly didn't... Murphy struck immediately), I've just disabled the monitor and let it ran for approx 8-10 hours to be sure the update completed.
The current status is that the screen is still black. However, I had a file share in W7, which I can actually approach in W10. In other words, it seems like the upgrade itself has completed.
At this point, I don't know what the status is of the PC, how I can access it (if at all) or how to fix it. I've been looking for a 'safe mode', but don't even know if it's logged in or not (I guess not, but I have no clue what the state of W10 is after an upgrade).
As they say, I'm completely in the dark and at this point willing to try anything.
I've bought a cheap AMD card which seems to do the trick. The boot process continues, and I've been able to setup the system.
Next thing, I've enabled RDP and deleted all NVidia stuff from my PC that I could find.
After another swap back to the NVidia card, the screen went back to black again. ough. Went to RDP, downloaded latest W10 x64 compatible driver from NVidia: (Driver version 353.62 x64 W10). Install and YES we've got stuff on the screen again.
Before starting the W10 update process:
- Enable RDP on your old PC.
- Make a backup.