An active primary partition only matters if you're trying to boot from
the disk that contains that partition. In other words, if you set the
BIOS to boot from the second disk drive, then the boot files for the
operating system has to be in that active primary partition. Since the
BIOS is set to boot from the first disk drive, the active primary
partition on the second disk drive is of no consequence.

On Tue, 21 Aug 2007 00:10:00 -0700, Eric
<Eric@discussions.microsoft.com> wrote:

>Does anyone know whay "Set partition to active" is about under Disk Management?
>I accidently select this option for [D: drive], hopefully, it does not cause
>any damage so far. I would like to know what this option is about and how to
>disable this option.
>Does anyone have any suggestions?
>Thanks in advance for any suggestions
>Eric