Photoshop 4 and 7 upgrade, now Windows 10 doesn't accept PS 4. How do I manage to download my versions?

Downloading is what you do to get a file from an Internet site to your computer... Installing is what you do to have install files put a program on your computer and link it to your operating system... what are you doing... downloading, or installing?

If you mean that Win10 won't allow you to INSTALL the program, read below

Cloud & Win10 https://helpx.adobe.com/creative-cloud/kb/Windows_10_compatibility_FAQ.html

-also, only CURRENT products will be tested and updated for compatibility with Windows 10

-so if you have an older program, you update to Windows 10 at YOUR risk of problems

-you may get CS6 and earlier programs to install and run, or you may not (some do, some don't)

-IF not, post details of any error messages and someone may be able to help

An idea that MAY work to install and/or run old programs in Windows 10... works for some, not for others

-http://www.tenforums.com/tutorials/15523-compatibility-mode-settings-apps-change-windows-10-a.html

-or Run as Administrator http://forums.adobe.com/thread/969395 to assign FULL permissions... says Encore, but sometimes required for ALL Adobe programs (this is NOT the same as using an Administrator account)