I am using and old 3 Gbp/s 64 bit Windows 7 Ultimate + SP1 on a Desktop with several OLD 3 Gbp/s Disks,
plus a NEW 6 Gbp/s Green 2000 GB drive from WDC which writes at less than half the speed of the 3 Gbp/s Disks.
This 6 Gbp/s 2000 GB has a 100 GB partition at the beginning
and can read at...