Hi wes55ETD,
If you want to reset all DRC settings then one way to do it is to open the DRC dialog go to File tab, click the Load... button and from the subsequent dialog named Select Design Rules File double click on the row that contains the default DRC file and this will update all DRC settings to factory default.
See below snapshot:
Please let me know if there is anything else I can help you with.
Kind Regards,