serial number cs4 design standard doesn't work anymore?!

[mibulab]

I have adobe creative suite 4 design standard from 2013. I cleaned my iMac and re-install Yosemite, after I downloaded cs4 design standard from adobe website, but now during the install process the serial number doesn't works anymore! why? It's always the same and it worked until yesterday.

[VarunS-NrjXZ4 · Accepted solution]

Hi

Kindly refer to Error "The serial number is not valid for this product" | Creative Suite

Invalid serial number error

See if this helps.

Thanks

Varun

[Easdib]

This answer doesn't work at all, I have the same problem and the solution that you are proposing is stupid. So we have a serial for Adobe Design Standard CS4 that is not working any more, and you have no solution to this issue. THANKS FOR NOTHING.

[Kelly McCathran]

If these solutions don't work, you will need to call Adobe:

(800) 833-6687

Monday – Friday

5am – 7pm Pacific Time