The Vista OS is usually a bootable DVD. If that fails to boot we look again to the CMOS boot settings and then test with other bootable media. The DVD drives lose boot capability under a few conditions so we fix that first since this feature is how we'll reload the OS or repair it.
Fix the non-booting OS DVD first.
Bob
can somebody please help. I turned the computer off last night and this morning it will not boot up. i tried the cd that came with the computer and that will not work either. thought i would repair the computer that way.
my computer is a dell dimension e520 vista home basic.
is there a way to get to dos to format the hard drive.

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