Computer Free Support

DOS used in the System Restore tool
Power On Self Test on the system after the sound, Windows welcome screen press the F8 key before, and then in the menu, select Safe Mode with Command Prompt, and then logged on as an administrator in the command line prompt enter:% systemroot% \ system32 \ restore \ rstrui.exe, carriage return after the wizard following the instructions on the screen to restore your system to the previous normal state.