On Sun, 30 May 2010 21:59:41 -0500, "Hot-text"
wrote:

All Windows system put boots on C

Well yes but the truth is slightly reversed. DOS and Windows search a
disk for a partition with the boot indicator set before anything else.
Such a partition will always be found first and allocated the drive
letter C. Andrew is talking about changing the bootable flag in the
partition table entries and this will change which partition Windows
regards as C. The other primary partitions (if formatted acceptably)
will appear after all the logical partitions in the volume list.

Setting the boot indicator on more than one primary partition entry
normally causes the MBR code to have a hernia. I suppose one could
change this code to find the first and not worry about the rest.

Cheers,
--
Steven