; make sure you have an available slot in your subscription before starting. Norton Community system specs are compatible with the latest Norton 360 Premium version?
: You can keep the installer on a USB drive to secure a new computer before it ever connects to the public internet. How to Get the Official Norton 360 Premium Installer norton 360 premium offline installer
When prompted, type the 25-character key exactly as shown. The offline installer does not require an internet connection to validate the key format, but it will check online later during activation. ; make sure you have an available slot