I have DC pro on my laptop.

You install programs exactly the same way you did the 1st time... put your disc in the drive and enter your serial number when asked

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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

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

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

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

-Membership questions and problems https://forums.adobe.com/thread/1146459

-or kglad links in reply #1 here https://forums.adobe.com/thread/2222942 may help

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