Windows 10: Desktop a strange pink colour

My Desktop has changed to a strange pink colour. What do I do?

:)

 

Strange pink highlight on hover/tooltip text

It looks like the RGB value that my computer has set should be similar to R: 253, G: 0, B: 249.
In the "Colors" directory of regedit there's no value that looks as if it has been set to the hot pink colour. Interestingly the hot pink highlight also shows up for some text in regedit:



Note: the pink highlight doesn't occur when I actually highlight things. It doesn't disapear when I highlight things either. It just shows up by default on certain bits of text, most commonly settings tabs (File, Edit, Tools, View, etc.) in most programs and hover/tooltip text on things - e.g. Hovering over a text document on my desktop will tell me the Type, Size, and Date modified but all this information has this strange pink highlight.

Because of this I'm not sure which value to change as Hilight seems to be set to the default blue, could you suggest a directory where I might find the correct value to change?

Thanks

 

apps on my pc run with pink colour

apps on my pc run with pink colour

 

win 10 update leaves vertical pink line on screen

today i applied latest win 10 update and now i have a vertical pink line on screen, it remains on every screen. i have tried these fixes

Step 1: I suggest you to run SFC scan,
System File Checkeris a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files.

Follow the below steps:

• Right click on the Start button, click on
  Command Prompt (Admin).
• Type “sfc /scannow” without the quotes and hit
  Enter.
• After the scan, restart the computer and check for the issue.

Step 2: Also, I suggest you to update the display drivers and check.

Steps to Update the Display Adapter driver.

• Press Windows key + Xkey when you are at desktop.
• Select Device Manager.
• Expand Display Adapter.
• Right on the Display Adapter and click on
  Update driver software

BUT i still have the line on screen.