There is a secret space of your computer where no search engine can reach. That is the system volume information area. Type ' C:\system volume information ' into the address bar ( ofcourse without the quotes ) and your reach there.
Actually its not very secret. Some third party browsers like the browser of Nero, can reach these areas. But files stores in the sytem volume information area are not listed in the searhces done on the computer. So it offers a minimal security. If you dont have any folder protection utilities then you can try this.
And one important thing : The system volume information area is cleared when you clean up the disk or when you delete the restore points. So make sure that you are not storing files on the root directory which usually users clear at regular intervals.
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