This wants dealing the registry, thus get a backup earlier you start and look up to following will help you.

1. Go to the registry editor.

2. under the left panel, direct to the following key :HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ Current Version \ Policies \ Explorer

3. In the right panel, right-click an blank space and choose New | DWORD value

4. Name the new value NoUserNameInStartMenu

5. arrange the value data to one

Log off and log back on to utilize the change. If you have to acquire the user name back, repeat the procedure and adjust the value data to 0.