Unable to install.

Whenever I get a update from guildwars after, when it starts back up it says unable to install and crap(yes I am admin). I have uninstalled the game about 8 times to diffrent locations of my hard drive (including My Documents) and it still says the same error. Someone help me please.

I had that problem this my help!

1) install guild wars to your main hard drive (it is our C)
2) try the Game.
3)Put disc back in cd/dvd drive. if you haven't already taken it out.
4)Don't click unistall this time click reinstall and that shoiuld be that.

If you have anymore problems i would love to try to help you.

I said in my first post I already tried that and it still doesnt work.