1. Click on the 'Start' menu and then go to the 'All Programs' button.
2. Click on the 'Accessories' tab and right-click on the 'Command Prompt' icon.
3. Click 'Run as administrator' from the menu and then type your administrator password into the field that pops up.
4. Type 'sfc /scannow' and press 'Enter.'
5. Wait for your computer to scan your system and repair your FPT files by automatically replacing incorrect versions with correct Microsoft versions.