If you've registered your software, you can log in to your account on Adobe.com and download from there.
Or you could try: http://prodesigntools.com/products/adobe-photoshop-cs5.html
This time, make sure to create a backup. This is a third-party site.
Hmmm. Suddenly my licensenumber is invalid (both for Photoshop CS5 and 5.1). My license is for the Extended Edition (Educational). I had it installed on my laptop, that suddenly crashed and I had to get a new one. Do I need to deactivate it from its current installation on my ex-PC before I can install it on my new PC?
Is it possible to do this without access to my old computer (the motherboard went bad, so the entire pC was replaced). I have looked through my account settings on adobe.com, but have not found anywhere to disable my old PC?
In that case you'll have to get in touch with Adobe Support. They'll reset your activation count. See this document: http://helpx.adobe.com/x-productkb/policy-pricing/activation-deactivat ion-products.html
A Chat button displays on this page that you can use to contact support over chat. (If you keep this document open, after a while a chat pod will also pop up)
Keep your order and serial number details handy. The Support folks will require those details.
I registered my CS5 when I bought a year ago. I now bought a new lap top deactivated the photoshop in the old one and CAN'T download CS5 to the new one. I called Adobe and got the answer that I need to buy a new version CS6. HOW CAN THAT BE? When I bought the CS5 I was told that if I deactivated the old computer I could have it installed in the new one. Now I have to pay again for a new version?????
What Laptop are you using? Do you have the media/installer to install the software?
CS5 version is not available for free download any more.
Where did you purchase the software from?