Because I want to use a recovery tool
If you are referring to the PIN number given to you by your ISP, then you can find it in the Symantec folder under "My Documents" (many thanks to Yogesh for this information!). If you mean your product key, then you can fetch the key from your Norton account. In addition, Norton also saves your product key automatically in the location mentioned above (Symantec folder under "My Documents").
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