. This means security updates and technical support are no longer available for this version. Microsoft Community Hub
: Look for a bright orange or yellow sticker on the CD case or a separate "Certificate of Authenticity" card inside the box.
HKEY_LOCAL_MACHINE\Software\Microsoft\Office\12.0\Registration
. Because support for this version ended in 2017, Microsoft no longer provides digital retrieval or phone support for these keys. Microsoft Learn Standard Locations to Find Your Key
For those who still own the legacy software, the product key is typically found in one of three primary locations: