- Windows 7: What are the system recovery options in Windows?
- Windows 8.1: How to refresh, reset, or restore your PC
- Windows 10: Recovery options in Windows 10
How to perform a clean boot
- You must log on to the computer as an administrator to be able to perform a clean boot.
- Your computer may temporarily lose some functionality when you perform a clean boot. When you start the computer normally, the functionality returns. However, you may receive the original error message, or experience the original behavior if the problem still exists.
- If the computer is connected to a network, network policy settings may prevent you from following these steps. We strongly recommend that you do not use the System Configuration utility to change the advanced boot options on the computer unless a Microsoft support engineer directs you to do this. Doing this may make the computer unusable.
After you have done the clean boot:
- If you were trying to install, uninstall, or run an application, see Install, uninstall, or run an application.
- If you were trying to fix an error or problem, see How to determine what is causing the problem after you do a clean boot.
- When you are finished with the troubleshooting steps, make sure to Reset the computer to start normally after clean boot troubleshooting.
Use the following steps to perform a clean boot:
How to start the Windows Installer service when system services are not loaded
The Windows Installer service does not start if you clear the Load system services check box in the System Configuration utility. To use the Windows Installer service when system services are not loaded, you must start the service manually. To do this, follow these steps.