Sometimes, by pressing some keys by mistake, the screen of your PC can be turned upside down.In this FAQ, we will explain how to fix your computer screen when this happens.

How to Fix Vertical Lines on the Computer Screen. Computer screens, like any component of a computer system, work or fail to work because of a series of possible factors: the input from the ...

If it’s a laptop, you’ll want to try to avoid getting liquid near the screen; if it’s a desktop, you’ll probably want to turn it on its side rather than completely upside-down.