Well,i`ve installed it the same way i did at windows 7,
Also i have no idea why the game didnt want even to start ,i had a rough guess it was Win8 but it might that i had the same error as the person above,"cannot initialise graphics:directX 10 or 11 support required".It might be related to SFX only.
Just for the record,the game inself plays really well with smoothframes after the nvidia sli fix since codemasters managed to brake it at patch 2.
I might give it another go after i have more spare time but overall i kinda dislike windows 8 to be honest and i might stick with it .
Just point it out,I never had a problem with SFX/Injecors under Win7 those problems appeared at Win8.
Also i would like to point out that im running the game with enabled steam in-game UI and it works ok,