Some think an erased drive would show in Explorer. It won't. And that's proper.
Did you try creating a partition and formatting that partition (I suggest the quick format)?
I ran an erase program and created a master boot record on a hard drive.in a spare USB external enclosure. When I plug it in I can hear the USB device recognition sound from the OS but the drive isn't recognized.
If I plug in any other hard drive it is immediately recognized and accessible..
How can I force the system to open the drive and permit reformatting or whatever is necessary?