Way 1: Turn High Contrast off via keyboard shortcut.

Press left Shift+left Alt+Print Screen to instantly turn it off.

Way 2: Turn High Contrast off via Settings menu


Step 1 go to desktop

Step 2 right click anywhere on clear area, the following menu should appear

 Properties Menu.png

Step 3 Click the "Personalise" button at the bottom of the menu, the following screen should appear

Personalisation menu.png

 Step 4 Click the "Colours" button on the left hand side and scroll to the bottom of the screen , the following screen should appear

 

 

Step 5 Click the "High contrast settings" link, the following screen should appear  

Step 6 Click on the" Choose a theme" drop down and select "None"

 

Step 7 Click "Apply" and exit out by clicking the "x" in the top right hand corner