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#11
When you are in Windows, look on the Start menu for a Dell folder. There will probably be a set of Dell utilities, one of which is "Create Factory Restore DVDs", and another is "Do Factory Restore". I strongly recommend that you create one or two sets of factory restore DVDs. Once you have done that, then the easiest thing would be to do the factory restore from the menu rather than from the DVDs. Either that, or boot with Factory Restore DVD #1.
You can go to the Dell website and download a program for creating a Factory Restore flash drive:
https://www.dell.com/support/article...-drive?lang=en