You will need to look at this site for complete removal of old, obsolete software:
Be aware that this removal tool may also remove AVG Free depending on the settings available and the ones you select. So have a fresh copy available in case this happens and do all work offline.
Anytime an user changes a/v software protection, a complete uninstall using this site is recommended, so the new install has no conflicts with the old software remnants left behind. Use Add/Remove to begin the uninstall process and then use the appropriate link to completely remove (downloaded when online and then offline of course). Some require the use of Safe mode only to work and the uninstaller must be on the admin desktop.
I have discovered through my Windows Security Center that I have a firewall running through AVG Internet Security 2012. I once downloaded it, but thought I removed it entirely. I have been running AVG Free 2013, but I removed it today, and the firewall is still showing up. The 2012 program does not show up on Add/Delete programs, in my Program Files folder, or anywhere else. Does anyone have a clue how I can remove this?
I am running XP with DSL on an older HP laptop. Thanks in advance for any suggestions.