So i’ve had this version of the Symantec anti virus program for a while now. I have had quite a few issues with it. A few weeks ago i picked up a virus from somewhere and i didn’t know it until i got a virus warning message from my PC. So i updated the virus definitions and did a full system scan. The scan found nothing so i went in and turned the bloodhound virus detection to maximum protection, and turned all settings up hoping it would catch the virus. A few days later i started my PC and my login page wouldn’t load up. I had to reinstall windows XP completely. I was notified that the virus i had deleted windows. I had everything up to date and i was very cautious about it, but it still got through and messed with files on the hard drive. It had no problem getting through the anti virus undetected. Now yesterday i got another warning message when i was on youtube. It closed the web browser and a message poped up warning me that i anouther virus. I also noticed my PC is getting really slow and acting sorta strange. I have everything up to date and my protection is strict. I did a full system scan and it didn’t find anything. I have alot of important information on my PC and i can not take any chance of windows or any of my files being deleted. What other steps can i take to prevent this from happening again?