@apm_93 thank you for posting to this public discussion forum about the problems you are encountering activating your copy of Creative Suite 6 Master Collection. I can confirm that the license you purchased in 2012 is still valid and active.
You stated that you received a message you have exceeded maximum number of activations for Creative Suite 6. Please see
for information on how to manage any remaining activations. You will need to deactivate the software on a previous computer to reclaim an activation. If that is not possible, then you will need to find a new solution for your creative needs in 2026.
I do appreciate that you took no direct actions, @apm_93 , to deactivate your existing installation of Master Collection CS6. As stated by @Nancy OShea the recent updates or other changes to the computer could have caused the software to request a fresh activation. If the changes on the computer are sufficient, then it can be detected as a new device. This is why we never included just one activation with any purchase.
Please do review
for complete information on the activaiton process for Creative Suite 6 in 2026.