In my peer guardian 2 program folder there is a massive 15gb data base file labeled history. Can I trash it or does the program need it?
You can just deleted "History.db", I just deleted mine and it was about 25,000 KB. Be sure to shut down Peer Guardian 2 first, after it shut down I just deleted the "History.db" file and Peer Guardian 2 automatically created a fresh "History.db" file once it got done loading the IP lists, the file is now 24 KB.