Serial number not valid anymore after upgrading to windows 11

[A22059302eaim]

My serial number failed. I forgot to deactivate in my old account on windows. Now it's not possible to use my CS5 suite anymore.

Any tips or advice? I tried searching and also did a clean install after using the removal tool. It did work first hour in windows 11, but somehow it got corrupted after booting the update program?

[Nancy OShea]

CS5 it is not certified to run on Win 11, sorry.  Nor is it compatible with macOS Catalina, Big Sur or Monterey.  CS5 is a decade-old, discontinued product.

You need modern software that's compatible with your new computer.

https://helpx.adobe.com/download-install/kb/windows-11.html

[A22059302eaim]

Thanks for your response. Guess I need to look  elsewhere to modify my images.