First of all we do not have acess to your PIN.
If you follow the instuctions in the following link - the PIN should be autoamtically inserted when you active Norton Security Online.
Any questions you mayhave regarding the install shojl dbe answered by using the lnks supplied in the instuctions.
Is this an initail install or have you had Comcast's free Norton installed previously on another system? If so go to that system and yu'll be able to locate the PIN as follows:
Your PIN number is stored in Norton Security_PIN.txt in the following location:
In Windows 10/8/7/Vista: C:\Users\Users Name\My Documents\Symantec\Norton Security_PIN.txt
In Windows XP: C:\Documents and Settings\\My Documents\Symantec\Norton Security_PIN.txt
Please let yus know if youhave any additional questions and we'll be glad to assist.