Back up your files, photos, documents, and product keys
Disconnect external devices except keyboard, mouse, and power
Restart the computer
Press the manufacturer recovery key during startup
Open the recovery or restore menu
Select the factory reset or restore to factory settings option
Confirm that you want to erase the hard drive and reinstall Windows
Follow the on-screen prompts to complete the reset
Wait for the computer to restart and finish setup
Reinstall drivers, updates, and your applications
Restore your backed-up files