Oh, okay... I did not know that the latest version of PSE was not compatible with Vista. Well, in that case, I'd consider upgrading straight to Windows 10.
As for ACR... the 70D is the last camera that CS6 will support. If you get any newer camera, and still want to use PS, it will be CC or nothing.
Personally, I wouldn't mind getting a CC account, but I refuse to throw any money at Adobe as long as they keep charging European customers twice as much as they charge in the US.
Ideology: The mistaken belief that your beliefs are neither beliefs nor mistaken.