I just had my computer reformatted last week (XP). There is no virus program in it and it runs great. I know it won't for long without a program, so i surfed all over, read discriptions and finally decided on Bit Defender. I downloaded it from the 'net and once installed, my machine kinda froze up. Finally it did start working, but very, very slowly. One reason I decided on BD, was it stated that it would not slow do computers. I know all of them slow them down some, but BD made mine unuseable. I went to the control panel and removed it (took a while), but now it runs like new again. Any suggestions? I am not a "techie", so I really don't know what to do other than try some other program.