Quarantine no restore option?

Issue abstract: Utility detected as threat, quarantined, no restore option

Detailed description: I understand why a utility from Nirsoft (to find product keys on my pc) was flagged as a threat and automatically quarantined, but I know it was legitimate for me and would like to keep it. In quarantine, the only options are Extract and Send for analysis, no Restore or Restore and exclude. How do I restore it?

Product & version number:Norton 360

OS details:Win 10 Ultimate

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