Win7 the "Lock this program to taskbar" option in the computer's right-click menu.

1. First, we press the Win7 flagship computer keyboard Win+r shortcut to open the computer's running window, in the Open Run window, we enter gpedit.msc and click Enter, so that you can open the Win7 flagship Computer Group Policy Editor window.

2. In the Open Group Policy Editor window, click to expand User Configuration-Administrative Templates-Start menu and taskbar on the left menu, and then in the right window, we find "do not allow programs to be attached to the taskbar." Double-click to open into the edit window and modify "Not Configured" to "Enabled" in its Edit dialog box.