Bitdefender 2015

I have a problem using bitdefender 2015. I ve installed programs from one windows account as admin and they dont work for the other users (a standart account and admin account). I ve installed bitdefender from my windows account and programs are working just for this account.

I am almost sure that the cause is bitdefender because after i unninstaled it (bitdefender ) programs began working for all users.

How i can make programs to work for all accounts. I really dont want to change my antivirus because i like bitdefender.

I am using bitdefender 2015 total security and the OS is Windows 7 ultimate x64