By default, your pinned taskbar programs/shortcuts are saved in both locations below. This is what this tutorial will be deleting to reset and remove all pinned program icons on the taskbar for you using a BAT file.
In the registry:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\
Taskband In the hidden TaskBar folder:
C:\Users\(user-name)\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\
TaskBar