Lock the taskbar Option is Grayed Out

If the Lock the taskbar option is grayed out under Taskbar and Start Menu Properties, a registry change can solve the issue.

1. Hold down the Windows key and press R (Or click Start > Run).
2. Type regedit and click OK.
3. Click the plus sign next to HKEY_CURRENT_USER then Software then Microsoft then Windows then CurrentVersion then Policies then click Explorer
4. Look for an entry on the right side for LockTaskBar. Right-click the entry and Delete it.