Hi Prashant202
My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.
Make sure you running the latest feature update to see if this is fixed.
Go to the following page then click 'Update Now'
https://www.microsoft.com/software-download/win...
Try adjusting the clear type again, if the problem persist, disable fast startup then restart.
Press Windows key + X
Click Power options
Click Additional power settings under Related settings
Click Choose what the power button does
Click Change settings that are currently unavailable
Uncheck 'Turn on fast startup (recommended)
Click Save changes.
Click Restart now and see if it works.