: Sign in to your Microsoft Services & Subscriptions page . If your copy was registered, you can view your product key or download the installer directly from there.
: Utilities like ProduKey or MyKeyFinder may be able to extract the full key from your registry if the software is still installed. 2. Common Product Keys for Reference
For 64-bit Office, use: cscript "C:\Program Files\Microsoft Office\Office15\OSPP.VBS" /dstatus .
If you are looking to activate or recover your existing license, 1. Recover Your Existing Key
Enter the following command for 32-bit Office: cscript "C:\Program Files (x86)\Microsoft Office\Office15\OSPP.VBS" /dstatus