Participant

Question

Creative suit 5 error message "Invalid Serial number" after install

Forum|Forum|5 months ago
September 2, 2025
2 replies
181 views

I am reaching out regarding an issue with reinstalling Adobe Creative Suite 5.

Previously, I had installed CS5 on my Windows 10 computer. However, due to system issues, I had to reinstall Windows without uninstalling CS5 beforehand. When I attempted to reinstall CS5 afterward, the installation failed and displayed an “Invalid Serial Number” error message.

I would like to ask if the license I purchased can still be used, even though CS5 is no longer supported. If so, could you please advise me on how to resolve this problem so that I can activate the software again?

Thank you for your assistance. I look forward to your guidance.

Community Expert

Community Expert

From whom did you purchase CS5?

Are you entering a Redemption Code or a Serial Number? There is a difference between the two. See below.

Redemption Code

Find your redemption code on an insert card inside the box. The redemption code is a 24-digit alphanumeric code.

Serial Number

Find your serial number on the disc sleeve or on the product box. The serial number is a 24-digit numeric code.

https://helpx.adobe.com/download-install/apps/licensing-activation/serial-number-redemption-code/redeem-adobe-code-gift-card.html

Nancy O'Shea— Product User & Community Expert

Community Expert

Community Expert

you entered the wrong number ot you're using the wrong installation file.

and yes, cs5 can still be installed and activated.

theera_0088Author

Participant

I'm sure that the serial number is correct and I install from CS5 CD.

Community Expert

Community Expert

there's a mismatch IF that error message is accurate.