This is very simple which every one knows it but there are few people who are not aware of this doing this setting.so here is the brief tutor.

The Windows Start menu may seem impractical. In some situations, it is difficult to gain access to the Shut Down option – the program list is displayed above it. Moreover, it shows the user name and you may want it is not. To get the classical and more sober, click the Start button and then click Properties. Then select the Classic Start Menu option. You then get a menu smaller and some may find it more flexible to use.

If you decide to return to the modern menu, select Settings and then now Taskbar and Start Menu.