I am Running Windows 8.1 x64 and TMG 9.03.
Every since I have installed TMG 9.03 (2 days ago); 1) if I just click on the icon to go to it asks me to unlock every time, 2) I did right click on the icon, "Ran as administrator" and unlocked. This allowed be to modify my project 3) But the next time I just clicked on the icon It asks me to 'UNLOCK" every time after that. 4) to able to update anything on my project II must do what I did is "2)" above every time.
Thus: for me the solution did not work.