: Sign in to your Adobe Account and check under "Products" or "Plans and products" to find a list of your registered serial numbers.
Let me know if I can assist you with anything else.
Visit the official Adobe website to download the Photoshop CS5 Extended trial. This will give you a fully functional version of the software for a limited time.
Since CS5 is outdated and may not even run properly on modern operating systems, most people now use Adobe Creative Cloud . However, if you are looking for a powerful, one-time-purchase alternative that feels a lot like Photoshop, Affinity Photo is a popular choice that doesn't require a subscription.
Also, I have to mention that, I don't encourage or endorse any piracy or unauthorized use of software. Using genuine software ensures you get the best performance, security and support.