The free best anti virus that are compatible with 7 are Avast and AVG
BUT if you want a really good anti virus you should get vista kapersky or Norton(big heavy program, which will cause disturbance)

My Computer
- Computer Manufacturer/Model Number
- DELL
- OS
- Windows Vista Ultimate and Windows 7 Ultimate
- CPU
- 2.0 Ghz
- Motherboard
- GIGABYTE
- Memory
- 4GB
- Graphics Card(s)
- nVIDIA gE FORCE 9600 GS 512MB
- Sound Card
- REALTEK INTEL
- Monitor(s) Displays
- PLUG AND PLAY SONY
- Screen Resolution
- 1000*2270
- Hard Drives
- NETWORK DRIVE 1TB
- Internet Speed
- 100MB/PS
- Other Info
- I REALLY AM AMAZED WITH THE NEW WINDOWS 7
