Search your hard drive ? How do you do that ?
Besides, Google is a subsidiary of the NSA and Google searches help the U.S. Government in tracking down who is looking up information on materials and techniques that only terrorists would have an interest in.
Microsoft?
They're still working the bugs out of XP, and their vaunted browser 'Internet Exploder' 6.0.
Feh.
Step (1) Go to Google.
(Step (2) At the end of the features - click "more" to bring you to the next page.
Step (3) At the bottom you'll see Blogger, Desktop Search.
(Step (4) Select the Deskstop Search which would lead to installation to your PC. Then you can use to search your email, etc.
Happy searching!