Thank you, I do see the problem in that screenshot, the screen is in grayscale
1
Open the Settings App, then go to Accessibility - Color Filters, are all options on that window disabled?
2
If all options were disabled in that section of the settings app, right click your Start Button and open Device Manager.
Expand the Display Adapters section, then uninstall your graphics card.
Restart your PC and check if that resolves the problem.
3
If not, open the Settings App.
Go to System - Recovery.
Click the 'Reinstall Now' button in the 'Fix problems with Windows Updates' section and wait for that process to complete.
This process will not affect your files, settings or installed apps.