Or, if your machine's rather old(which I doubt this) but you'll need a boot disk of some sort. I beleive most Windows CDs have an option to write boot disks.
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Primary- i7 920 | 6GB RAM | 9800GT | 160+160+500GB
Secondary- Athlon X2 4200 | 2GB RAM | 7600GT | 80+250GB
Netbook - Atom N280 | 2GB RAM | GMA945| 160GB
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