Now the problems starts !

When I start the FS2020 it just comes up with a messagebox that my computer does NOT meet the minimun requerements !

But how can I found out WHAT it is that don't meet the requerements ?

It's a little expensive to just start changing units one by one to find out.

OK; my graphic card need to be changed to a GeForce GTX 970

And this:

But will it run with this ?

just run it, no harm will be done, set low settings and see how it goes.

Your CPU does meet the minimums. But you should be able to start and run it. Just that your CPU will struggle very much.

This is my setup:

Intel Core i7 4790K 4.0 GHz @ 4.6 GHz - GIGABYTE GeForce GTX970 G1 GAMING OC-4GB - MSI Z97GAMING 5 - G.Skill F3-12800CL7D-(4x4)16 GBXM Ripjaws X - Crucial MX100 256GB SATA3 - Seagate SSHD 2TB SATA III - Barracuda 7200.14 1TB SATA3 - Cryorig R1 Universal - FSP RAIDER-650 80+ SILVER - Zalman Z11 NEO USB 3.0 - NOX Coolfan 120 LED AZUL - Cooler Master Devastator Teclado+Ratón - BENQ GW2265HM 21.5" LED DVI/HDMI.

As an alpha and beta tester I have been able to fly quite well in Medium (35-40 fps) and High (25-30 fps) settings. So I don't think you have a problem flying smoothly.
Best regards.