Explain hoa2fix just in case.
It depends on which one you get. Antivirus Live doesn't allow you to run the internet or anything, but Antivirus Pro allows you to run internet, etc. Live is the worse one, and takes a little while to fix. You can either have a guest account prepared on your computer, and use that to get rid of it ( Malware doesn't affect multiple accounts.) . Or, shut down your computer and run it in system restore.