So you guys are saying that its normal? My game arma 2 is running in 32bit as well! This is so strange. Could you advise me a 64bit program so i can open it to see if it runs in 64 or 32.
Yes, it's normal. Probably 99% of applications and games are still 32bit.
The biggest benefit of moving to a 64bit OS is that it allows you install and use more than 4GB RAM effectively. Also, native 64bit apps should in theory run better/faster than 32bit ones, but this is a bit unproven in my experience.