The serial number you entered has expired. This product cannot be licensed. Please contact Customer Support. Provide a serial number.

Question

I work for a University. We've purchased a few copies of Adobe Acrobat Pro XI boxed software. It's been working great all along. Now, it won't work at all. Error as follows:
"The serial number you entered has expired.This product cannot be licensed. Please contact Customer Support. Provide a serial number."

Answer 1

You need to do what it says... contact Adobe Customer Support. We can't help for two reasons (a) we are not Adobe staff (b) even if we were, we can't examine private serial numbers in a public forum.
When you contact them, best to have all the paperwork from the original purchase in case there are difficulties with a supplier etc.