The computer is Lenovo win7 Home Edition. How did the start menu become a classic mode? How to change it back?

Renaming solves the problem that "visual styles can't be applied". Enter the folder C: \ Windows \ Resources \ Themes \ Aero \ ZH-CN, and rename the file aero.msstyles.mui in it to the file name corresponding to visual styles.

The solution is as follows: right-click on the blank space of the desktop, click Personalization in the pop-up option bar, and select the theme "windoes7" under the aero theme in Personalization to switch back to the original theme of win7, as shown in the following figure: At this time, we see that the desktop has changed back to the default style.

Manually configure recovery. If you know which configuration has been modified, you can modify it directly in the blank space of the taskbar and find the setting of "Taskbar and Start Menu Properties". Automatically configure the restore taskbar. In the blank space of win7 desktop system, select "Personalize".

You should be able to achieve the classic start menu effect. The reason why I changed my name casually, for example, I changed it to otoboku here, is because this menu will appear in the start menu, and there must be corresponding settings in the registry.