Mega Left Hand Panel

If you would like to remove the mega links from the left hand panel of the file explorer and there is no "remove from left panel" in the drop down menu then the following will allow you to remove it:

Open regedit and then go inside HKEY_CLASSES_ROOT\CLSID\ search for System.IsPinnedToNameSpaceTree. Change the value from 1 to 0, and check what it has removed from the file explorer. If it responses with an error just move on to the next value.