This is Pre-Computer Basics 101...
simple rules of thumb:
Computer acting up = reboot
Computer won't start = make sure it's plugged in and PSU is turned on
mouse not working = make sure it's hooked up
keyboard not working = same as above
BSOD = reboot
No screen = make sure it hooked up
Computer crashes after updates = restore to before updates
Can't boot up to restore = try safe mood
simple rules of thumb:
Computer acting up = reboot
Computer won't start = make sure it's plugged in and PSU is turned on
mouse not working = make sure it's hooked up
keyboard not working = same as above
BSOD = reboot
No screen = make sure it hooked up
Computer crashes after updates = restore to before updates
Can't boot up to restore = try safe mood