Serial number CS4 - invalid ?

[SD28]

I can't reinstall CS4on my new device Mac el captail . I have the serial number but the answer is Invalid

[John T Smith]

That version is old enough that it may not run at all, but the link below MAY help

Install CS5 on Mac 10.11 https://forums.adobe.com/thread/2003455

[SD28]

Thank you.

I have a serial number in my Adobe account (purchased in 2009)

I have the following message : serial number invalid.

I have to do basic operations with CS4.

I can't activate CS2 because I don't have power PC.

[image modified to remove personal information. Never post your serial number in an open forum! -mod]

[Del_Z · Accepted solution]

Hi SD28,

Please try the steps in the following documents to resolve the serial number error: Error "The serial number is not valid for this product" | Creative Suite‌ and Invalid serial number error‌.

If you continue to experience issues installing CS4, please post a reply to this discussion. As John notes, there may be compatibility issues with CS4 and OS X 10.11, but we will do our best to get you up and running.

Best,

Del

[palesuzie]

I am having the same problem: I bought CS4 in 2012 and am trying to install it on a new laptop (Macbook Pro, Mac OS 10.11), but the I get the "X" and "invalid serial number" error. The suggestions on the help pages you linked to didn't work for me. Please advise!