On XP Home. I have had two hard drives, and a long time ago I
reconfigured the hardware profiles to try to save power and heat.
Now, after a while with only one internal drive, I have installed a
second drive.
I cannot get it to recognize a new hard drive that I installed.

Is there a way to reset the "hardware profiles" config??

I can see the drive on the device manager. It's there and working
properly. It's not showing up on "My Computer"

Any ideas?