Click on Start Button
Type Gpedit.msc, Group Policy Editor will open (Click Allow if prompted for elevated privileges)
Navigate down and expand the following Tree Nodes User Config > Administrative Templates > "Windows Components" > Instant Search
Double Click Custom Instant Search Internet Search Provider
Choose to Enable
Enter Search My SharePoint Site
Enter https://YOURSERVER/searchcenter/pages/search_results.aspx?k=%w for URL.
NOTE: The %w will be substituted at runtime with your search text url encoded.
Replace YOURSERVER with your SharePoint server.
Click OK
Close Group Policy Editor
Reboot or run the following command in a command window as Administrator gpupdate /force
請看 Vista Search & Organize Tip
非 Vista 的環境, 可以下載安裝 Desktop Search , 設定方法請參考
Tips to Enable SharePoint Intranet Search using Windows Desktop Search 3.0 RTW