| Percent slower | |||
| Boot |
CPU |
Disk |
|
| Norton Internet Security 2006 | 46% | 20% | 2369% |
| McAfee VirusScan Enterprise 8 | 7% | 20% | 2246% |
| Norton Internet Security 2007 | 45% | 8% | 1515% |
| Trend Micro PC-cillin AV 2006 | 2% | 0% | 1288% |
| ZoneAlarm ISS | 16% | 0% | 992% |
| Norton Antivirus 2002 | 11% | 8% | 658% |
| Windows Live OneCare | 11% | 8% | 512% |
| Webroot Spy Sweeper | 6% | 8% | 369% |
| Nod32 v2.5 | 7% | 8% | 177% |
| avast! 4.7 Home | 4% | 8% | 115% |
| Windows Defender | 5% | 8% | 54% |
| Panda Antivirus 2007 | 20% | 4% | 15% |
| AVG 7.1 Free | 15% | 0% | 19% |
AVG 7.5 is still available for business and network use, and still works well. The price works out to $10 per CPU per year, including servers.
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