you dont need to enable that to "READ" the drive only to change the drive ... I use this option all the time i would know ... I also format and partition drives in WINUA that require -disableharddrivesafetycheck.. But this is not a good way as you have to open the amiga 1200 every time disconnect the hd, remove the cable, Plugg into usb-ide adapter, connect cable and reverse this for otther way around