I've created a scratch-installed Windows 7 workstation, joined it to the domain and migrated the user profile. I've made sure that user has permission for everything under that user's AppData. I cannot pin anything to the task bar. I've removed everything from %APPDATA%\\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar. I've already tried deleting/re-adding HKEY_CLASSES_ROOT\lnkfile\IsShortcut. I've verified the gpedit.msc, User Configuration -> Administrative Templates -> Start Menu and Taskbar > Do not allow pinning programs to the Taskbar, is set to "Not Configured". I've rebooted several times. I cannot pin Outlook to the taskbar. Nothing happens. I need to be able to pin things to the task bar.