I have a useful computer (HP Pavilion m9250f) that I originally set up with Windows 7 and recently upgraded to Windows 10.
It boots normally from a SATA HD.
This is to be used as a replacement for a much older computer that I used for testing hard drives and other "tool" type needs.
This one doesn't seem to recognize SATA hard drives when they're added at least when boot to Windows. I've had two cases now where Windows doesn't handle the added drives nicely. But Knoppix will handle them OK.
I really want this machine to do the job running Windows but am rather puzzled where to turn.
The hard drive interface mode is AHCI.