Check account.adobe.com under your "Order History" or "Plans" to see if your registered serial number allows for a direct installer download.
Some users with proof of purchase (a valid serial number) have successfully requested custom download links from Adobe Support . adobe flash professional cs6 download for windows 10
Finding a download for for Windows 10 is increasingly difficult because Adobe officially discontinued the Creative Suite line years ago. While the software remains a favorite for classic animation due to its stability and ActionScript 2.0 support, it is no longer sold or officially supported by Adobe. Official Download Options Check account