This was set again
You are looking at the GSX folder, which is not what I said to remove and to check. The key I said to remove is:
HKEY_CURRENT_USER\SOFTWARE\FSDreamTeam\root
You said you removed the whole FSDreamTeam key, which means it should have been removed but now, to see if it's back ( it should ), you shouldn't check inside the GSX sub-key but, as I've said, main FSDreamTeam key which should contain the "root" entry, which should point to the install folder.