"adi" <adi@discussions.microsoft.com> wrote in message
news:A5AAC2C1-957A-45AA-9674-F7252A8F17E4@microsoft.com...
>I have installed a new large disk in my system and reinstalled OS.
>
> Now i want to add my old disk to system in one of the slots available(
> this
> disk has os on its primary partition with drive letter as C:\) and its
> active
> bits are not wiped.
>
> My qustion is if i add this disk ,although my system will boot from new
> disk but after booting and rescaning in disk MMC it will recognise other
> disk( old one) with active partion as well , then how it well assign the
> drive letter or resolve the conflict.
>
> Any Idea suggestion, experince are most welcomed

There is no conflict. Active partitions are only relevant for the
primary master disk, which your old is obviously not. Drive
letters will be assigned from the first free letter upwards.