Is bitdefender internet security good?

Why won't BitDefender Internet Security 2009 let me do a deep scan on the computer?

• There are some issues on my computer and I've got BitDefender Internet Security 2009 that protects the computer and dose scans! there are 3 options: full scan, update scan and deep scan and somehow even though it says 51 day expires it won't let me scan or fixthe issue on the computer when i choose the option it like I'm clicking on something that dose nothing unfortunately! IT'S SO ODD!!! WHAT'S GOING ON??????!!!

• Answer:

  Hello There, The usual reason your antivirus will not update on scan is that you have a virus on your system. System Restore probably will not work either since a virus usually disables or corrupts those files too. The quickest way I have found to fix the problem is by doing a full reinstall of your operating system. I have spent much time trying to remove viruses but usually without success. Good luck, Al