Windows 10: Greyed out area on screen

Hi there, I need help! I hit some unknown key accidentally (I think) and this happened to my display. I can still use the screen behind the greyed-out areas outside the 2 superimposed rectangles .... I just can't see it! Cannot for the life of me find out how to reverse this.

:)

 

Grey area at top of screen

I would like to know what the grey area is on the top of screen that has File Edit View History Etc on it when I open home page?

When I open Google Chrome there is a very small grey area with my E-mail address in it. What is doing this ?

Thank you

 

HD5770 grey screen problem

My Grey Screen was caused by bad memory. Changed the memory and everything has been good for over a year. What i mean by this is that Grey Screens are not black and white to solve they are in the grey area. There are alot of different components within your computer that can be causing the grey screen. If you can i would RMA 1st though because the GPU may be really sensitive to your system. If you still have issues after the RMA got for overclocks and RAM.

 

Overclocking / Undervolting guide for Vega 56 or 64?

Here's a quick laundry list:

List of software to use for overclocking and testing
Examples:
Wattman (and how to find and use it, like an overview, including profiles)
Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

Step-by step overclocking in Wattman
Fan speeds
Power limit
Temp limit
Voltages
Core speeds
Memory speeds