Adobe Photoshop CS5 Extended serial code doesnt work

I have CS5 Extended on a disk and it worked for about a year then the serial code stopped working? whats the fix or is adobe scamming me

By @Tyrone36318317j4na

When/where did you buy this? Adobe CS5 was released in 2010. So if you used it for about a year that would be 2011 we are now 13 years later. Did you just try to install this again on a new computer? Did you deactivate on the old computer before installing on the new one?

The more information you can share the more likely you are to get help and a resolution to your specific issue.

what's the message you see?  is the serial number revoked?