the Windows display cache contains all the data relating to the screen of your computer. This helps the computer to remember the mode and resolution to use when a particular display output is detected. This avoids having to manually apply all parameters once a particular display output has been connected. But sometimes this causes a cascade of problems – if the output display does not work properly. In this case, you should reset or clear your display cache and see if that helps.
Clear the display cache in Windows 10
To do this, you will need to open the registry editor. But before that, we recommend that you first create a system restore point or back up your registry.
Once done, go to the following location:
HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Control GraphicsDrivers
Delete the following keys:
To select Yes when you see the confirmation box when prompted to confirm.
Restart your computer and your display configuration and your settings will be reset to the Windows default values.
What we did here was to force Windows 10 to forget the monitors and their respective settings stored on the computer. So, when you next connect to an external display, it will be treated as a newly connected screen and you will start using the default and optimal values to work again.
This patch can be very useful when you connect to an external monitor and find that the output does not satisfy you.
If you find that the results do not satisfy you, you can still use the created restore point to restore your computer.
A bunch of posts on this website that will help you reset other features or software:
Reset Windows 10 PC | Reset all Local Group Policy settings | Reset Windows Store apps | Reset the notebook | Reset the Windows Store cache | Reset recycle bin | Reset keyboard settings | Reset Surface Pro Devices | Reset Microsoft Edge Browser Settings | Reset Internet Explorer Settings | Reset Chrome browser settings | Reset Firefox settings | Reset Windows Security Settings | Reset Windows Firewall Settings | Reset Winsock | Reset TCP / IP | Reset the DNS cache | Reset Windows Update | Reset each component Windows Update | Reset Windows password | Reset touchpad settings | Reset WinHTTP Proxy Settings | Rebuild Icon & Reset Thumbnail cache | Reset the WMI repository | Reset the data usage | Rebuild the font cache.