Windows 10: Windows 10 grey screen with cursor after startup

I just applied dark mode in my windows 10 and changed high contrast settings. Then a blue screen popped up and said please wait . Then unfortunately my lights went off . When i restarted the computer , it was able to log in with password with the dark mode on . But not able to use taskbar . I waited for few minutes , the computer screen went grey several times and coming back to normal . I was able to use the desktop apps. But then my computer froze. I waited for couple of minutes and then turn the switch off. When i started computer , after startup , the screen went grey with the cursor on . I didn't even Login

:)

 

Can't see cursor on startup screen


This is happening on 2 laptops. Both have a startup screen with options of W10 and W10 Safe Mode.

After upgrading to W10 the cursor does not show for selection between the options. It is still possible to move over the mouse or touchpad and move from one option to the other, but it's a bit hit and miss.

We had the same startup options in W8.1 and no problems with the cursor so it's definitely W10 related.

Any suggestions?

 

Grey screen on startup

When I click on Windows 10 button I get a grey/black screen and a cursor.

The cursor can be moved but is useless without something to click on!

The hard drive whirs and the drive indicator led flashes as if Windows is loading but after 12+ hours nothing has happened.

How can I access Windows?

 

Can't get GPU-Z to start with Windows 8.1 startup

I'm not sure how to do that. Could you list the steps for a noob?