I had to erase my computer and I lost my photoshop

https://accounts.adobe.com/ then click Plans & Products at the top to find a list of your programs and serial numbers

Download & Install instructions https://forums.adobe.com/thread/2003339 may help

-includes a way to go to a page to download Adobe programs if you don't have a disc or drive

-Cloud desktop http://helpx.adobe.com/creative-cloud/help/creative-cloud-desktop.html

-Cloud Getting Started https://helpx.adobe.com/creative-cloud.html

-you will need to enter your original serial number during install for non-Cloud programs

-or kglad links in reply #1 here https://forums.adobe.com/thread/2081216 may help

Also go to https://forums.adobe.com/community/creative_cloud/creative_cloud_faq

Cloud License allows 2 activations http://www.adobe.com/legal/licenses-terms.html

-Install on a 2nd computer http://forums.adobe.com/thread/1452292?tstart=0

-https://helpx.adobe.com/creative-cloud/help/sign-in-out-activate-apps.html

-Windows or Mac does not matter... 2 on the same operating system, or 1 on each

-Two activations on one account MAY NOT be in use at the same time (note in the above license link)