1, in the case of the screen can not see, press the power button off, and then boot. Press the F8 key until the Advanced boot menu appears;
2, in the Advanced boot menu to choose "Safe Mode" and into the desktop, before entering the desktop system may ask whether the system is still the original solution to the problem, usually directly into the safe mode;
3, after entering Safe mode, right click on the "Computer" icon, select Properties, and then select "Device Manager";
4, in the Device Manager's hardware list to find "display adapter" and expand, right click on the item (video card), choose Uninstall;
5, in the Uninstall dialog box Check "Delete this device driver software" option, select "OK";
6. After the graphics driver has been removed, the reboot system enters the normal mode. This time does not spend screen, is actually the video card is not a driving state;
7, finally need to find a pair of graphics driver to install, you can choose to go to the hardware brand's official website to download.