Solution to interecpt HTTPS traffic from another machine

I would like to intercept the HTTPS traffic from another machine (it could be VirtualBox or my other win pc) and decrypt all the stuff and see properly headers exct. I've been trying to use Fiddler both on virtualbox and on my machine that would act like network debugger, but with both options it keep saying on the machine i have to debug that the certificate is trusted also if i've installed that also on the other machine.The best solution/idea, would be create a setup where my sniffing machine acts exactly like a proxy. Or suggest me other solutions.
The points to respect are 2:
- Nothing has to be installed on the other machine except certificates and stuff.
- No debbugers have to be ran on the other machine.
I don't need an actual project (nothing coded) but just a working and stable solution.