One of Windows XP useful features is the file indexing service. This extracts information from documents and other files on your hard drive and creates a "searchable keyword index", which is used to make searching for files more efficient.
Follow the steps below to disbale file indexing:
1. Double click on My Computer--> located on the Desktop.
2. Right click on the C: drive.
3. Select Properties. You should see a window that resembles as below,
4. Uncheck the box next to Allow Indexing Service to index this disk for fast file searching. A window will pop up asking where to apply the changes.
5. Select the bullet next to Apply changes to C:\, subfolders and files, and press OK.