1. Shutdown computer
2. As soon as computer powers on, press and hold the left Alt and then tapp F10 keys.
3. Select Keyboard Layout (United States English).
4. Please select Troubleshoot in Advance Options to choose Reset/ Refresh.
5. The reset can take anywhere from an hour to 4 hours.
6. Once the reset is complete computer will load Windows and start installing your drivers and software. Computer may reboot several times during this process. After everything is complete your computer will be like it was when first purchased it.