Solution to the problem of computer not showing desktop and taskbar after startup

After a computer is infected by a kind of Trojan virus, the main symptoms are: the desktop and taskbar are not displayed after turning on the computer, only the desktop background is shown. Many friends who encounter this annoying issue where the desktop and taskbar are not displayed after turning on the computer often choose to reinstall the system. In fact, you don't need to reinstall the system to make the computer display the desktop and taskbar again after startup. Here, I will share the solution with everyone.