Here is a temporary fix that usually helps me.

Game guard runs in iexplorer.exe... or atleast masks itself in an iexplorer.exe instance.



On the first instance of iexplorer.exe not the *32 ones right click on it and go to "end process tree"

That will close out all the *32's which are hung instances of game guard. After that it should let you log in easier. When instances of game guard hang up. They will cause program collisions. When those happen GG will throw a temper tantrum and close everything.

While this is only a temporary fix and doesnt fix it 100% of the time. It has worked for me lately.