You need to
remove PCT FW in Safe Mode. Then check for remnants, which there will be many in Safe Mode as well. To do this: Start > Search > All Files and Folders > Advance Options (check off everything except case sensitive) > type in the top box a variety of things like:
- PCT
- PC Tools
- unins000.exe --- but many other things will come up and you need to right click on Properties to see if it pertains to PC Tools
- unins000.dat --- but many other things will come up and you need to right click on Properties to see if it pertains to PC Tools
-
Reboot (if using XP, reboot twice)
Online Armor has a Free and Premium FW. The OA ++ has an AV, so do not get this as it will conflict with Avast. I would recommend that you trial the software first to see if you like it and that it plays well with your other software. I use the OA Premium, which offers more protection. But you can certainly layer your security software to give you adequate protection as well. I just think a FW is an important line of defense, esp. after what happened to me.

OA does install/uninstall cleanly.