According to the download section, Cubase version 7.0.7 (7.5 as well) is not compatible with Windows 10.
That doesn’t need to say it’s impossible to get it working. 
Is anyone using Cubase 7.0.7 without a problem on Windows 10, or should I stay with Win7?
Sorry not an answer to your question, but your post made me wonder … having access to all earlier versions of Cubase when I buy C8.5 doesn’t mean that much if none of them work on the W10 OS, is that right?
Even 5.5.3 runs absolutely fine on Windows 10. I’d give it a try.
Has anyone else inspected any Issues with Cubase 7 on win10?
Openning previously saved project and so…?
I want to be sure before upgrading.
That’s exactly what I want to know. 
I thought I had seen an official answer, “Yes, Cubase 7.5.40 works great in W10 as intended by Steinberg”, but I can’t find that anywhere.
Any help?
Still curious, do people have 7.0.7 (or something equal) running on Windows 10? I’m still on Win7 64-bit.