Log into the ThreatLocker Portal.
Navigate to the Unified Audit Page.
Change the Action dropdown list to Any Deny, and select Search.
This will display everything currently being denied by ThreatLocker.
Filter the results further by Username, Hostname, Filename, etc., to help reduce the amount of noise in your results.
Review the results, and expand any of the rows for more details.
If you identify files being denied that you want to permit, this can be done directly from here with either the Permit Application or Add to Application buttons.