Windows offers a plethora of convenient features. The Start menu remembers your most recently accessed files and programs, the Recycle Bin remembers what you've deleted, and Internet Explorer logs a history of each Web site you visit and fills in your passwords and personal information automatically. I admit it; as lazy as I am, I use most of these features. However, I'm the only user of my particular computer. The question is, do you want to leave a trail of where you've been and what you've been doing on the computer you're using?
To clear recent programs and documents from the Start menu
Right-click the Start menu.
Select Properties.
Click the Start Menu tab.
Click the Customize button.
On the General tab, enter 0 under Number of Programs on Start Menu.
Click the Clear List button.
On the Advanced tab, uncheck List My Most Recently Opened Documents.
Click the Clear List button.
Microsoft offers a convenient tool called Tweak UI with a so-called "paranoia" feature. You can download it and other free Windows XP PowerToys at http://www.microsoft.com/windowsxp/pro/downloads/powertoys.asp. If you don't want prying eyes to see what files you've been accessing, Tweak UI offers an option to clear your document history automatically each time you exit Windows.
To clear your document history automatically with Tweak U I
Open Tweak UI .
Click Explorer.
Under Settings, check Clear Document History on Exit.
Uncheck Maintain Document History.
Uncheck Maintain Network History.