Bitdefender 2010 in my windows 7 Aser Aspire notebook crashes frequently and required to reboot. This starts occurring from last two days, though I am using this security tool from last 7 months. I basically sue this machine for internet access for my teaching purpose, so I am suing this security application. But the problem that I mentioned in the above quite disappoints me. As per my knowledge I check everything but I found nothing which related with this problem. What should I do now? How to recover from this problem? Any input will be appreciable for me.