Do a sysprep:
On the old PC put the 120 HD back in it and boot it up
follow the instructions below; when you run sysprep you
will have 4 flags at the bottom check all 4 and click set
back to factory make sure you tell the system to shutdown,
when it does pull the hd from the old unit and place it in
the new, boot up the new immediatly put your driver cd in
the cd-rom. and there you go all done. XP will check all
PNP devices and install them. This works everytime for me.
Prepare a reference computer for Sysprep deployment
To prepare a reference computer for Sysprep deployment in
Windows XP, follow these steps:
On a reference computer, install the operating system and
any programs that you want installed on your destination
computers.
Click Start, click Run, type cmd, and then click OK.
At the command prompt, change to the root folder of drive
C, and then type md Sysprep.
Insert the Windows XP operating system CD into the
appropriate CD-ROM or DVD-ROM drive, and then open the
Deploy.cab file in the \Support\Tools folder.
Copy the Sysprep.exe file and the Setupcl.exe file to the
Sysprep folder.
Note If you use the Sysprep.inf file, copy this file to
the Sysprep folder also. For the Sysprep tool to function
correctly, the Sysprep.exe file, the Setupcl.exe file, and
the Sysprep.inf file must all be in the same folder.
Remove the Windows XP operating system CD.
At the command prompt, type cd Sysprep to change to the
Sysprep folder.
To run the Sysprep tool, type the following command at the
command prompt:
Sysprep /optional parameter
Note For a list of parameters, see the "Sysprep
parameters" section.
If you run the Sysprep.exe file from the %systemdrive%
\Sysprep folder, the Sysprep.exe file removes the whole
folder and the contents of the folder after it finishes.
Microsoft recommends that after you run the Sysprep.exe
file on a reference computer, isolate the reference
computer from the local network where the image will be
subsequently deployed to avoid any NetBIOS conflicts. This
permits the Sysprep tool to complete the Setup program,
join the domain that is specified, and use the new
computer name that is specified in the Sysprep.inf answer
file.