If someday I replace my "C" drive which runs XPHome
how does one do a drive copy, if it can be done?
Yes, it can be done. Most of the drive copy programs
can do that as long as you are careful to unplug the
original drive before the first boot after the copy.
Once XP has booted off the new drive and has
rebooted once it has noticed that the physical drive has
changed, you can plug the original drive back in again,
usually as a slave, and format it and use it for data etc.