You shouldn't have to do this.
There is no relation between formatting and OS installed on harddrive
Most motherboards that have the hard drives running off of sata have the AHCI option. Even switching to a different motherboard with this type of interface enable will cause little headache, though you will most likely have to reactivate windows, you may or may not get by if the motherboard is identical I.E. swapping a dead motherboard for a good one of the same model.