Raymond J. Johnson Jr. said:
No, he's trying to do a repair install of an SP2 installation with a
non-SP2 XP disk. The OP will need to slipstream SP2 into his XP install
disk. He should Google for Autostreamer or for slipstreaming in general.
You can run a Repair Install on a SP2 patched system using an XP CD that is
either the original 2600 or SP1. You do the repair by booting off the CD.
The installer will search for a currently installed Windows setup and ask if
you want to attempt a repair. The repair will essentially just remove SP2 so
it must be reapplied again after the repair has been completed.
I've tested this by doing a fresh install of Windows XP which had SP2 slip
streamed into it. Next I installed several applications and created a few
files to simulate a setup that had been running for awhile. Next I booted an
original version of XP to do a repair install. The result was positive. SP2
is removed but the files, apps, data and settings were retained. SP2 was
then applied separately. I've done this several times to fix systems that
have become unbootable after SP2 was applied and I had no other way to
remove SP2.