Adobe Acrobat 9 Pro Extended wants a new serial number

[25699236]

I have Adobe Acrobat 9 Pro Extended installed on my Windows 7 computer. It has worked perfectly for years. Today it says the serial number is invalid and wants a new serial number. I don't have a new serial number. How do I correct this error?

[YatharthS · Accepted solution]

Hi 25699236 ,

Please Share the exact error message you are receiving on entering the serial number .

If you are getting the message for 'Invalid Serial Number ',please refer to this Article :- Error "Invalid serial number" | Adobe Acrobat 9 | Adobe Creative Suite 4

Regards,

Yatharth