Start your HP Pavilion computer in Safe Mode to avoid software errors while troubleshooting your computer. Windows 7 Safe Mode loads only necessary drivers and software while the computer is booting up. Loading only necessary drivers and software prevents the computer from booting up programs that are causing errors on your machine. Once you are finished working in Safe Mode, restart your computer to boot your HP Pavilion up normally.
Disconnect any external hard drives, smartphones, MP3 players or any other devices connected to your computer, and remove any CDs or DVDs from your computer.
Click the "Start" icon on the Windows taskbar. Click the arrow to the right of "Shutdown," then click "Restart."
Press and hold the "F8" key while your computer boots up to access the Advanced Boot Options menu.
Highlight "Safe Mode" using the arrow keys on the keyboard, then press "Enter." The HP Pavilion boots up in Safe Mode.