Windows 10: More fine-tuning...

If your screen suddenly goes black, and you haven't done anything, that's the problem right there - you haven't done anything, and Power Options has turned out the lights on you.

So go into Control Panel, to Power Options, and configure it to stay on...

And right after a fresh install of the system and some of your own programs, the drive will be fragmented, and you should use a program like Auslogics Disk Defrag to connect all the pieces again. I hasten to add that lately, that program comes with a bloatware installer which adds other stuff from an outfit called 'Spigot' and you need to be careful to uncheck some boxes and choose the Custom Install to be able to prevent all that from taking over. But the Disk Defrag itself does a great job.....

...and it found 1,971 fragmented files in my newly-installed Windows 10 - and that's why you need to do this. These portions of files need to be reconnected with their main parts if the system is to function properly. And as you notice, this program will look at and defrag any operating system on your drive, and you can select that by adding or removing the checks in front of each listing.
I like to do one at a time, but if you left all of them checked, it would start with the first, and go through the list one after another until finished. And it's fast.