After running into this issue 2 days in a row on two different notebooks, I thought I’d post what worked for me to fix this issue.
I tried a few different options before the problem finally rectified itself.
Both notebooks had been upgraded from Windows 7 and had worked properly worked for a time.
The issue seems to involve the user login portion of loading windows. To fet back into Windows from the black screen I had to put the computer to sleep first.
On the Toshiba notebook that meant pressing the power button letting it sleep the pressing the power button again to wake it.
That did not seem to work on the HP. On that note book I had to close the lid, wait 30 seconds and reopen the lid.
That was a poor work around and after stumbling around for an answer I finally found one.
A few things I did before the final soultion included Upgrading Window 10 to the Anniversary Edition, uninstalling the Video Card Drivers, reset the BIOS, turning off fast boot and turning off hibernation.
The final step I did was a registry edit.
To access the registry hold down the Windows Key and press R.
In the window that pops up type “regedit” without the ” “.
Then hold down the Control Key and Press F.
In the search field type ” ENABLEULPS ” again with out the ” “.
This may take a minute or two.
Double Click ENABLEULPS and change the value from 1 to 0.
Press OK and close REGEDIT.
Reboot the computer.
Hopefully this works for you as it did for me. I have only run into this on AMD notebooks so far and this fix will not work for NVidia.