Win7 desktop can not display the solution of the right-click menu

1. Try to log out of the system or restart the system.
2, check the keyboard has no buttons to get stuck or not working, such as ESC button, Enter button, you can try to tap all the keys on the keyboard (or try to replace the keyboard).
3, check whether the right mouse button is sensitive, or try to change.
4, press F8, then enter the safe mode, test whether the right-click menu can be used, if you can use the suggestion to restore the restore point, or uninstall some useless software, clear the boot item, and then enter the normal mode test.
5, all check no problems, or the fault is still recommended to reinstall the system.