To remove Windows Search version 4 from XP, try the following steps:

1. Start by running up Add & Remove Programs from the control panel and look for Windows Desktop Search in the list. Unlike with version 3, Windows Search v4 should be there.
   
   
   
2. If not, open a cmd window (click on Start, then “Run..” and type cmd in the Run dialogue that then appears). Then copy and paste the following line into the cmd window:

   %systemroot%\$NtUninstallKB940157$\spuninst\spuninst.ex