Windows7 system activated and still black screen how to do

1. After starting the system first, press the “Ctrl+Alt+Delete” button on the keyboard to open the task manager;

2, then click “File-New” above the task manager. Task”, enter “control” in the box, click OK;

3. In the pop-up control panel interface, select Click <Device Manager>;

Then find the “display adapter> in the device manager on the left side of the window and click on it, then right click on your computer graphics card to select “uninstall";

5, then confirm in the popup In the device uninstall dialog box, in the “Delete the driver software for this device” checkbox, click OK to uninstall, restart the computer after uninstallation (may need to restart twice);

6, then Re-download and install the graphics card driver, install it differently than the driver version that caused the black screen problem before, to avoid causing a black screen again.