"ARMA2 is not installed on your computer or installation is corrupt"

["ARMA2 is not installed on your computer or installation is corrupt"]

if you got from somewhere else not steam and you have steam try moving folders in to steam apps and patch seems to work for me i say seems as im in middle of patch

[ARMA 2 OA is not installed on your computer or installation is corrupted]

ARMA 2 OA is not installed on your computer or installation is corrupted comes up when i try patch the game i have tried reinstalling [8times] i have also tryed adding arma2 OA to arma 2 folder and vice verse but nothing also tryed spliting to two different folders arma 2 and arma 2 oa both nothing there i have also tried dayz sixupdater to to fix but it think its in steam apps and mine is in C:\Program Files (x86)\Bohemia Interactive i had it on steam b4 but that one has cd key hacked and i got rid of whole thing any ideas guys?