Peter Jason wrote:
I have plugged in a 1TB HDD and Windows Explorer
does not show it.

In Disk Management it shows up as "Disk 3" and
unallocated.

No amount of right clicking will induce the
"Initialize Disk" wizard to appear.

Is there anything else to do?

Peter

You haven't got phantom discs 1 & 2, have you? No amount of right
clicking on them will bring up the format dialogue.

Ed