I purchased photoshop elements 9 and installed on an older macbook pro laptop that has crashed. I have a new macbook pro laptop that cannot install the photoshop elements 9 disk. Can I download it from adobe?
What OS do you have on your new computer? If it is Big Sur or beyond, Elements 9 almost certainly won't install. If it is Monterey, you may want to wait awhile before purchasing Elements 2022, since most users are having problems with it and it is not yet officially supported by Adobe Elements. Adobe is working on a fix but I have no information as to when that may happen.
You might be able to find a copy of PSE 9 laying around somewhere on the internet (but it won't matter anyway), however, the validaton / registration servers for that version have been shut down for years, and that version of the program hasn't been suported for years as well.
It wouldn't matter if you could download a copy: It wouldn't work on you new OS anyway-- apple killed off 32 bit programs (last year?)-- it won't work on your new computer.