I have a Dimension 521 with (regrettably) Windows Vista on it that was given to me. Unfortunately, I am not able to find the restore CD.
I want to restore it to its factory settings, but after pressing F8 to get to the Advanced Boot Menu and then selecting Repair Your Computer, it simply goes back to the main screen and desktop, as if I had never selected the Repair option.
How do I get it to repair?

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