Hello,

I tried to solve an installation problem for a friend of mine by GPT and as I tried to complete the installation, I most probably made a mistake in trying to turn UEFI boot on. I invalidated the legacy boot option and now the system does not start at all, no Dell logo nor anything else. I tried to boot on several installation DVDs with no results.

Is there a way to reset the settings I made in the BIOS ?

Is there any other solutions to boot ? Is possible that, I am able to find one, an UEFI iso image could be used to start from the DVD and go on with  the installation ?

I think the BIOS version was A11 but I am not 100% sure. Anyway, I am pretty sure I did not try to boot aother BIOS.

Is anyone can help me ;-)