First, tell us more about the computer. Make and model? Laptop or desktop? Age of the computer?
HP LAPTOP--ABOUT FOUR MONTHS OLD
Which version of Windows 10 are you running? Is the latest "Fall Creator's Update"?
And the mouse you're using, is it a USB external mouse or an the older style PS2 plug mouse?
WIRELESS LOGITECH. CAME WITH THE LAPTOP.
When was the last time you took the cover off the computer and cleaned the dust out from inside with compressed air? If not recently, please do so.
I DON'T KNOW HOW TO DO THAT
Next, In your first post you state that " I've powered it off and on a few times" but in your last post, you state "it doesn't even want to power off. If I try to power off, it just comes back on". So... have you actually been able to shut the computer down completely. HOW are you shutting down the computer? Have you tried holding down the power button for 20 seconds?
OK, 20 SECONDS DID IT. IT'S OFF NOW
And as to the "It finally put the photo of Mr Ranier up", are you referring to the Windows 10 lock screen that appears just prior to showing the log in line?
YES. IT SHOWS THE CURRENT TIME AND DATE, TOO.
Next, in order to attempt to let Windows load the login screen, have you unplugged ALL USB devices from the computer, such as printers, cameras, etc.? If not, please do so.
NO DEVICES WERE EVER CONNECTED--JUST THE MOUSE
Hope this helps and let us know more.
IT'S SITTING THERE WITH POWER OFF, HOPING YOU'LL TELL ME WHAT TO DO NEXT.