Help finding serial number for CS4

Question

I purchased the Adobe Suite CS4 many moons ago as a student in college. It came with a PRODUCT CODE for you to then plug that in and verify the student info THEN it would generate a serial number for you.

I did that way back when. So then today I updated my Mac Book Pro to BigSur, and now my Suite isnt working at all. None of them. I cant even uninstall them!

Trying to add my products within adobe with the SERIAL NUMBER i cannot obtain anymore.

PLEASE HELP

i dont wanna have to buy this suite again. CS4 works fine for what i do

John Waller · Answer

today I updated my Mac Book Pro to BigSur,

Unfortunately, you'll have to stay with your old operating system if you want to continue with CS4.

Only the latest Cloud versions of Adobe apps will install and run on Big Sur.

If you want to continue with CS4, you'll have to downgrade back to your old operating system. Even then you'll still have to locate your CS4 serial number.

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