Is it possible to revert from dualboot back to Windows 7 Starter only?

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http://askubuntu.com – I am on a netbook and got recommended to try Ubuntu. So i am going to run it with W7 Starter still as my OS. But if I decide to go with Ubuntu as my main OS is there any way to go back to W7 Starter if for whatever reason I change my mind? Sorry if it is a simple, silly question. I am unsure so thought I would ask. Many Thanks, Niall (HowTos)