How do I use Tor as system VPN and cut out some nodes?

How can I configure Tor as a VPN and use it so that my system automatically connects to Tor and route all traffic through it?

I've found a couple of pieces of freeware, like FreeCap (forcing programs to use Sock server), but it doesn't really do what I want - I am more looking for a global solution to this problem.

I've also tried to powershell this command:

Netsh winhttp set proxy 127.0.0.1:9050

But in Firefox my IP remains the same :(

I think this will only be effective for winupdate and pure http requests.

Is it also possible to cut out nodes? I think 3 nodes max are pretty secure, is that correct?