Learn why you might get a message noting that the serial number is invalid or has been revoked, and how to fix this issue.

If you have received a message similar to the ones displayed below when trying to install your product, stating the serial number you are using has been revoked, or is invalid, it is because the serial number you are attempting to use has been blocked by Adobe.

A blocked key notification
A blocked key notification
Another example of a blocked key notification
Another example of a blocked key notification

Why was the serial number blocked?

Adobe blocks serial numbers that are known to have not been issued by Adobe, or are known to have been used fraudulently by unauthorized sellers to produce counterfeit software. Unfortunately, you may only know the serial number has been blocked for this reason when re-activating or reinstalling Adobe software. 

What should I do if the serial number is blocked?

There are several steps you can take if you receive this message: 

  • Check that you are using the correct serial number for your product installation here: Find your serial number


A serial number is 24 numbers only. Here is an example of the serial number format: 8721-0892-0867-4459-9223-2874.

  • If the serial number associated with the software is blocked, to learn more and quickly resolve this issue visit this page.

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