LH Task Manager в Android Market

LH Task Manager (v. 1.2) Разработано LiveHome

LH Task Manager is a tool to kill applications running.
-kill run applications
-kill run services
-Uninstall applications.(Except System Apps)

-Customize item height

1. How to use it (for new users to quick start)?

It is pretty simple. Open this tool and take a look at the running applications list? Uncheck some apps you don't want to kill (such as File manager and some system apps) Tap the button 'Kill selected apps', it will kill all applications checked.

2. Why there are programs running that I haven't used or even opened?

Some applications will start up once you turn on your phone or be invoked by some evens.