Official message
Microsoft original
The Software Protection Service reported that the grace period expired.What this means
The grace period for using the system without activation has ended. Activation has to be completed before normal use can continue.
Common causes
- Activation was left unfinished for a long time.
- An activation failure was not followed up.
Do this first
Run slmgr /dlv and check the current license status.
What to do next
- 1Finish activation with the correct licensing method.
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.