Microsoft Office installation places FindFast in your system. Its indexing of files can really slow your system. To remove FindFast, click Start, Settings, Control Panel. When Control Panel opens, double-click the Find Fast icon. When the Find Fast dialog box opens, select an index entry and choose Index, Delete Index. Click to the affirmative in any warning dialog boxes that open. Repeat this procedure for all the index entries. When you've deleted all of them, choose Index, Close and Stop to close the dialog box.
Right-click Start and choose Open. Double-click the Programs icon. Locate the Startup menu and double-click to open it. Click the FindFast entry to select it, then press Delete. Click Yes to confirm deletion. Restart your computer for the changes to take effect.
Findfast, now the Indexing Service, is enabled by default for Windows 2000 and XP as part of the base installation. Unless you have a special need for a full text index of all local files, I recommend disabling it.
In Control Panel
Select Add / Remove Programs
Select Add / Remove Windows Components
Uncheck the Indexing Service
or simply change the Indexing Service from Automatic to Manual in the Services manager console.