Install (side-by-side with windows) & uninstall ubuntu

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http://askubuntu.com – I'm looking for way to install it alongside the windows and at the same time also looking for "how to" uninstall ubuntu (in case I need to get things done quickly as I'm not used to ubuntu and in case I dislike ubuntu). BTW, I have preinstalled windows 7 (64 bit) on my laptop (HP ProBook 4331s) and wonder will it be okay to install ubuntu side-by-side?? I also make my USB bootable disk ubuntu 12.04 LTS 32 bit, is it ok when mine is windows 7 64 bit? Thank you Please help me (HowTos)