First, uninstall the graphics driver
1, first into the WIN8 system security mode, then open Device Manager, the (Show card) option to uninstall the two options, if (monitor) option exists (yellow exclamation point), you can uninstall it, uninstall after the system will automatically prompt you need to restart the computer to be effective, At this point just follow the system prompts to operate.
Ii. Use of System Restore
1, first into the WIN8 system security mode, and then open the Advanced options interface, in the advanced options will have (System Restore) options, use the left mouse button double-click will pop-up corresponding action prompts, you just follow the system prompts to complete the operation.