Home SP3 SFC wants Pro SP3 CD

[bizzybody]

HP DV4308WM laptop. Factory install of XP Home SP2, updated to SP3 and all current updates.

The keyboard has decided it's suddenly not going to work, but a USB desktop keyboard does. One possible fix I found was to show hidden devices in device manager then delete KBoard and reboot.

KBoard is missing in device manager. I've already tried deleting the normal keyboard entry and rebooting. It found the keyboard and installed the driver, but still doesn't work.

Next step, run SFC /scannow It says it needs to replace some system files and wants the XP Professional SP3 CD-ROM. Hewlett Packard only provided a restore disc that puts back on XP Home SP2 plus a ton of shovelware. SFC rejects it. Next I try a XP Pro CD I've slipstreamed to SP3. SFC rejects that and demands a disc with the WXPFPP_EN volume lable. So I whip up an XP HOME SP3 disc with the XP PRO volume label. Nope! SFC rejects that one too.

So two questions.

1. Why is System File Checker for XP HOME asking for an XP PROFESSIONAL CD?

2. How do I force it to accept the XP Home SP3 CD?