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What do I press to boot to the USB I just made? Is it F12 or F2 ? Because I pressed F12 in beginning but it did not work and just normally started Windows again. I have XP by the way.

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What is the model number of your machine? – Janus Troelsen Jul 23 '12 at 19:52
maybe pressing f2 might solve your will rather give persistant changes – ashutosh Jul 23 '12 at 19:54
ALl i know its a GX150 (im not really tech savy on hardware so tell me if im wrong) Im a designer haha. I pressed F2 and it does not say anything about a USB in the boot sequence so im lost here. Its kind of an old DELL I believe. – oscar cuevas Jul 23 '12 at 19:57
Pree F2 on Boot, go to System-> Boot Sequence(press Enter) -> select USB Storage Device and make it the first boot device(press U), press Esc and save changes. – Victor K Jul 23 '12 at 20:25

1 Answer 1

Check out the Dell™ OptiPlex™ GX150 System User's Guide at;

and, in particular, the "System Settings" at:

It may be that this older Dell machine doesn't have the capability to boot from a USB drive. The "Option settings" under the section entitled "Changing the Boot Sequence" in the latter link makes no mention of a USB option.

Arhimed's suggestion to use F2 will display the available boot options. That should be definitive.

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