But the problem is that a typical uninstallation using the Windows Add/Remove Programs is often insufficient, special removal utilities for specific antivirus products are required. Below is a comprehensive list of uninstallers.
1. AppRemover: This tool enables you to thoroughly uninstall most of the popular security applications such as antivirus, antispyware and firewall from your computer.
2. Avast uninstall utility uninstalls Avast security products.
6. CA Antivirus
11. NOD 32
17. Trend Micro
18. TreatFireCurrently the above links are working, but there may be change in the future. Some of the lists are collected via ESET Knowledgebase and others by searching through the web. If you have got a new one please add it in the comment. Thanks.