Only one processor showing XP

This fix is if Windows XP is only showing one processor on a multi processor/core machine.

1. Boot to safe mode with networking

2. Delete (or rename) the following if they exist from C:\WINDOWS\System32\

hal.dll

ntoskrnl.exe

ntkrnlpa.exe

(Check for these. They usually do not exist but delete them if they do)

halmacpi.dll

ntkrnlmp.exe

ntkrpamp.exe

3. Copy the following into C:\WINDOWS\System32\ from the files described in the bottom note.

hal.dll

ntkrnlpa.exe

ntoskrnl.exe

4. Reboot and it should fix itself the rest of the way.

NOTE: The new files in step 3 were taken from the originals which can be found on other machines in C:\WINDOWS\ServicePackFiles\i386:

halmacpi.dll renamed to –>HAL.DLL

ntkrnlmp.exe renamed to –>ntoskrnl.exe

ntkrpamp.exe renamed to –>ntkrnlpa.exe

Yanzzee