Reinstall movie maker on xp

To reinstall the Movie Maker: 

• You must be logged on as Administrator or as a member of the Administrators group in order to perform this procedure. 

1. Click Start , click Run , and then type the following command:       

                       %systemroot%\inf

         NOTE : There are no spaces at all in the preceding command line.

2. Click OK that will open the INF folder.
3. you may see lots of inf files, just Locate the file moviemk.inf 
4. Right-click on the moviemk.inf file, and then click Install . This will reinstall the files that Search needs to proceed normally.  

       NOTE- when you install, you will be prompted to locate source file from cd-rom or from another location that is needed to install movie maker.
  
That's it.
Enjoy and start your movie making using movie maker.

Still if your are unable to get this, just follow this link
Get MovieMaker from Microsoft