Windows Photo Viewer Shows Pixelated Images

All other photo viewers are working fine. However,  Windows Photo Viewer can't display pictures in proper resolution, showing pixelated images.

If you are using driver version 30.0.101.1191 or newer, then rollback your driver to a previous version to resolve the issue.

If the issue persists even after rolling back to the previous version, then Run the file checker tool from Microsoft.

1. From the desktop, press the Windows + X shortcut key combination.
2. In the menu, select Command Prompt (Admin).
3. In the command prompt window, type SFC /scannow and press Enter.
4. System file checker utility checks the integrity of Windows system files and repairs them if required.

After the process is complete, reboot the computer.

 If the issue persists, contact the system manufacturer for further assistance.