What should I do if the Win7 system is still activated?

The first step, after the system is started, use the shortcut point to start the task manager [Ctrl+Alt+Delete], click “Start Task Manager" (shortcut "Alt+t").
After the second part and the task manager come out, click “File”-“New Task (Run...)”.
Step 3: After entering "control" in the Run window, click OK.
Step 4, then you will see the control panel coming out, find “Device Manager” and click on it. (If you are not used to Win7's control panel display, you can change the "View Mode" in the upper right corner to "large icon" or "small icon")
Step 5, in Device Manager Find the <;Display Adapter" and click on it, then right click on your graphics card and select “Uninstall”.
In the sixth step, in the pop-up dialog box, click “Remove the driver software for this device” and click OK to uninstall.
Step 7: After the uninstallation is completed, restart the computer and it will be solved (it may need to be restarted twice).