Too, you could try this.
Press Ctrl+Alt+Del on your keyboard, and open Task Manager. On the
Processes tab of Task Manager, if
explorer.exe is running, right-click on it and Choose End Process. If it
doesn't restart automatically, switch to the Applications tab, and from the
File menu, choose New Task. Type explorer.exe in the Run box, and press
Enter on your keyboard.
If explorer.exe is not running on the Processes tab, switch to the
Applications tab, and from the File menu, choose New Task. Type
explorer.exe in the Run box, and press Enter on your keyboard.