C:\Program Files (x86)\Openfire\monitoring\search directory over 60GBs

C:\Program Files (x86)\Openfire\monitoring\search is over 60GBs. Can I remove older files?

this is probably from the Monitoring plugin, which archives all chats. Go to your Archiving tab from the openfire admin webui and check your settings for how old of messages are being saved (probably default of zero (0) meaning all)

We are running version 3.7.1 and I don’t see a setting for how old of messages are being saved. Do I have to upgrade to get that setting?

Try looking under:

Server --> Archiving --> Archiving Settings