The background of the Win7 system is black after booting. What can I do if I can't load the desktop and taskbar?

There was a small problem when the computer was turned on today. After entering the system, only the black background was displayed. The familiar desktop background and shortcuts could not be displayed, and the taskbar could not be displayed. It is said that even more, it will automatically open such as Notepad, Explorer or other pages. Let's take a look at the Win7 system after the boot is black. Can't load the desktop and taskbar?
The background of the Win7 system is black after booting. What can I do if I can't load the desktop and taskbar?

1. Let's try the universal restart to solve the problem.
The background of the Win7 system is black after booting. What can I do if I can't load the desktop and taskbar?

2. If you can't solve it, then the first thing we need to do is to click the Ctrl+Alt+Del key combination on the keyboard to open the task manager.
The background of the Win7 system is black after booting. What can I do if I can't load the desktop and taskbar?

3. Click on File Select Run and enter regedit Enter to open the Registry Editor.
The background of the Win7 system is black after booting. What can I do if I can't load the desktop and taskbar?

4. Locate HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon in the registry, and then find the Shell value in the right window.
The background of the Win7 system is black after booting. What can I do if I can't load the desktop and taskbar?

5. Double-click to open “Shell", change its data to explorer.exe, exit the Registry Editor, and restart the computer.
The background of the Win7 system is black after booting. What can I do if I can't load the desktop and taskbar?