Reinstall Windows Task Manager

1. Goto Start and then Run, {or windows + run}And type the following command:%systemroot%\inf {generally C:\WINDOWS\inf}

2. Click OK to open the INF folder.

3. Locate the file mstask.inf
Right-click the file, and then click Install.This will reinstall the files that Search needs to proceed normally.
You will be asked to place your windows XP cd rom in the drive.keep the cd and its over !!!