How to change machine level proxy to initial condition of my Windows 7?

I forced my applications to use a corporate proxy so as to get their data that way. I issued a command netsh winhttp import proxy source=ie. Now I don't need this anymore and would like to roll back Windows 7 at the default condition. How to do that or what a command should I issue for this once?
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Haresh NikumbhConnect With a Mentor Sr. Tech leadCommented:
netsh winhttp reset proxy

use above command to reset back
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