What should I do if the start menu in the win10 computer does not open?

If you upgrade from win7 64-bit flagship iso to win8 system, users have a lot of dissatisfaction, then these dissatisfaction, it seems that most of them exist in the win8 system to cancel the original start menu. This not only makes many users do not know how to shut down, but even many operations are affected. Naturally, Microsoft also accepted the suggestions from everyone. After the system was upgraded to win10, the start menu was re-loaded into the computer. But recently, there is a user who just upgraded to win10 system and said that their start menu can't be opened, then there is such a problem, how do we solve it?
1. First, we will be working on the win10 system. All the work done is saved, after which we close these windows and return to the traditional desktop location of the win10 computer.
2. After that, we can press the Ctrl+Shift+Esc key combination on the win10 computer keyboard to open the task manager window of the computer. In the open window, we will switch the interface to the detailed information column, then In the process, find the "Desktop Window Manager" (English system to find the Desktop Window Manager), after the selection, we right-click, select “ end task & rdquo; in the slide down menu. At this time, a prompt window will pop up, check ““ discard unsaved data and close”, click “close”.

After completion, the desktop of our win10 computer will automatically restart. After the restore, we can use the start menu normally.