Official message
Microsoft original
The Software Protection Service reported that the product key is not available.What this means
No usable product key was found on the system. This usually happens after a reinstall when the key was not entered again.
Common causes
- The product key was skipped during installation.
- The product key was not written to the system.
Do this first
Run slmgr /dlv and check whether "Product Key Channel" is empty.
What to do next
- 1Enter the product key that matches the licensing method, or restore the digital license.
Continue diagnosis from this code
Take what you know into the Windows activation diagnosis. It will ask a few more questions to narrow this down.
Sources
Related articles
About this data
The meaning and the original message come from the documents listed above. The same error code can have more than one cause. This site gives an order of checks. It does not decide your exact situation from the code alone.