In order to perform a clean uninstall of ZoneAlarm, there is an option available.  

Please follow the steps below:

IMPORTANT - If you have a Cisco VPN client installed, you must first uninstall the VPN 
client, then follow the instructions below, and reinstall the Cisco VPN client again 
afterwards. This procedure will remove all traces of the TrueVector service, which was 
incorporated by Cisco into the VPN software.


- Click on Start -> All Programs -> ZoneAlarm
- RIGHT-click on Uninstall ZoneAlarm Security, then select Properties
- Under Target you will see the following line (the actual drive may be different on your 
system):

"C:\Program Files\Zone Labs\ZoneAlarm\zauninst.exe"

Change it to:

"C:\Program Files\Zone Labs\ZoneAlarm\zauninst.exe" /clean 

(add a space and then the /clean)

- Click OK to run the uninstaller, and OK any security alerts that pop up.
- say "Yes when being prompted for the removal of all files.
- Reboot
- Look in the Windows folder, if there is an Internet Logs folder delete it
- Look in the Windows\System32 folder, if there is a Zone Labs folder delete it
- Look in your Program Files folder, if there is a Zone Labs folder delete it
- Now you are ready to install the latest Beta (7.1.028.000)