Formatting Hard drive without deleting windows 7?

Is there a way of formatting a drive without deleting windows? I am trying to install windows 7 with a legitimate key on a hard drive, however I do not have a CD. Is there any way of installing windows 7 without a cd?
 

GenericUser

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Nov 20, 2010
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It depends. I'm assuming that the drive you want to format has windows on it. In that case you will lose all data, unless the drive is partitioned and you format a partition that doesn't have windows on it, or you are formatting a separate drive that doesn't have windows on it.

For a diskless install of windows, if you have a big enough flash drive you can use this tool:

http://www.microsoftstore.com/store/msstore/html/pbPage.Help_Win7_usbdvd_dwnTool
 

Will it work with an external drive that has files on it? Sorry not really good at this stuff, if you guys could guide me through the process that would be great help.