My mb exes are working in Win 10 for at least several installs (haven't checked some for ages). Pathways are to the D drive; I like to keep cfs3 installs separate from the OS (in the old days the speed referencing saved textures in the RAM or pagefile was much quicker by keeping OS and install on different drives).
Thing is, I have the Ubisoft DVD, which has the noCD version of cfs3.exe legitimately - I don't know if this makes a difference.