Hello :slight_smile:

Well definitions cannot be compred directly (for any antivirus).
Many of them have heuristics or generic detection(avast! is very stong at this one) which cannot be counted and compared.
Most of us,avast! users is ex Norton users and we can assure you that avast! can beat Norton anywhere.

No its not exactly true. By default it is true,but if you set On-Access module to High sensitivity it will detect/scan those viruses/files that are copyed/moved/modified along with scanning when opening the file.
To enable this,just left click on blue “a” bal next to the clock and move all sliders to High.

The last one is the VRDB database (virus recovery database). Without it avast! really has a very limited repair functionality,but when you create VRDB database you can virtually repair any infected file.
Its a very cool exclusive feature,but in these days there are mostly worms that don’t infect anything,they just copy certain files to your hard drive. So the main task is to delete such files in most painless way. Boot-Time Scan is usually the best solution :slight_smile:

Hope i provide enough info. If you need anything else just say and i(we) will try to help you :slight_smile: