I have got one unique problem in my computer after installing Security software and it is very frustrating. My computer is currently running with Windows 7. There are several members in my room. For that reason I have set the password for my computer to login. It was working fine until I installed the BitDefender. First I didnít get any problem with the installation. One day the BitDefender asked me to change the windows password. For the security purpose I have changed it. When I try to login from that password I couldnít. I have tried the previous password also but didnít work at all. What can I do now?