how to block all traffic besides ie? im tethered and hav limited data

Hey fellas

Im tethered to my phone and have to conserve data. How can I stop all internet activity. Beside internet explorer?
My computer is using all sorts of data in the backrounf.
I turned off windows update but other things are useing it

Thanks
 

My Computer

My Computer

System One

  • Manufacturer/Model
    Dell XPS420
    Memory
    6 gig
    Graphics Card(s)
    ATI Radeon HD3650 256 MB
    Sound Card
    Intergrated 7.1 Channel Audio
    Monitor(s) Displays
    Dell SP2009W 20 inch Flat Panel w Webcam
    Hard Drives
    640 gb
    Cooling
    Fan
    Keyboard
    Dell USB
    Mouse
    Dell USB 4 button optical
    Other Info
    DSL provided by ATT
Hey thanks for your help

I tried that but that didn't work it may have slowed it down but it did not stop the background activity completely
any other ideas is there a firewall of some sort that I could use to stop all activity besides Internet Explorer
 

My Computer

When you have the problem, press alt, cntrl. delete and bring up task manager, then click on service tab.. Click show all users and then upload a screen shot of what you see to us.
 

My Computer

System One

  • Manufacturer/Model
    Dell XPS420
    Memory
    6 gig
    Graphics Card(s)
    ATI Radeon HD3650 256 MB
    Sound Card
    Intergrated 7.1 Channel Audio
    Monitor(s) Displays
    Dell SP2009W 20 inch Flat Panel w Webcam
    Hard Drives
    640 gb
    Cooling
    Fan
    Keyboard
    Dell USB
    Mouse
    Dell USB 4 button optical
    Other Info
    DSL provided by ATT
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