Are you on Mac or Windows? If you're on Windows, please check your OS's version number - we only support Windows 10 Anniversary Edition or above.
It says that my windows is up to date.
I think I do have the Anniversary update.
If you are still facing issues with the download, send me your Adobe ID, location, and phone number over a private message along with a link to this forum post. We will get in touch with you for investigation. To send a private message, click my picture and use the message button.