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#80
Hello Valory, and welcome to Seven Forums.
Since you will be doing a clean install with OPTION ONE, then you will not need to do anything else to the hard drive since you will be formating the drive or partition for Windows 7 during the installation. Normally the installation DVD should boot from it when you press a key at the "Press a key to boot from CD drive" message the displays briefly (few seconds) at boot. :)
Hope this helps,
Shawn