You would need another copy of Media Center 2005, and any proprietary drivers for the Dell machine. The second "partition" on the hard drive is your recovery partition. You can use this to restore the applications that came pre-installed, or put the machine back to its "out of box" state. There is no way to install just the operating system with this type of restoration. See your owner's manual or Dell's included help for information on how to access the recovery partition.
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Doug Knox, MS-MVP Windows Media Center\Windows Powered Smart Display\Security
Win 95/98/Me/XP Tweaks and Fixes
http://www.dougknox.com
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Per user Group Policy Restrictions for XP Home and XP Pro
http://www.dougknox.com/xp/utils/xp_securityconsole.htm
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"nikeair" <> wrote in message news:B384212D-B243-4813-998A-...
>I just bought a new Dell computer with MS Media Center. I want to wipe out
> the computer and do a clean install. I noticed that the computer is already
> split in to two partitions. Is that required for reinstalling, or can I just
> reinstall it on to one partition? If someone can point me to the exact steps
> on doing the complete reinstall, I would greatly appreciate it. Thanks.