All Programs or application used currently was appeared under the Start Menu. But, if you want to erase any traces  application you are using or browsing, the only option is to disable auto display of recent opened programs in the Start Menu. If you want to know how, follow the rest of my post.

Windows 7 is the latest Windows System everybody desire to use but the appearance have some differences and little complicated  compare to other Operating System except for Windows Vista. So if you are using Windows Vista, this will be very easy for you. But if you are new users of Windows System I provide details information to make it easy.

• Right click you mouse  in the main screen and choose “ Personalize” to appear the Control Panel Home.
• Under the Control Panel Home, click “ Task Bar and Start Menu” bottom left of the the Main Screen of Control Panel Home .
• Under the “ Task Bar and Start Menu Properties” choose “ Start Menu” and under the Privacy uncheck “ Store and Display Recently Opened Programs in the Start Menu”.
• Now, you don’t no need to worry about tracing  recently opened programs.