INI, but only contain the information for a Windows XP entry.
In case the boot partition is not assigned a drive letter, the NST folder and its contents will be created on the system disk, while NTDETECT.
In order to load either of the two XP entries, you’ll need to select the NTLDR entry (called “Legacy Entries” by default) from the bootmgr/bcd boot menu, and select the copy of Windows XP you wish to boot into from the second menu presented by NTLDR. Each copy of Easy LDR is configured to boot into one and only one copy of Windows XP, so your complicated two-level boot menu in the previous picture boils down to a much simpler and prettier result: Keep in mind that since there’s only one entry in each Easy LDR instance, no second menu will ever appear.
Selecting the first Windows XP entry in the top-level BCD menu will directly load the first copy of Windows XP and selecting the second Windows XP entry in the top-level BCD menu will take you directly to the second copy of Windows XP, with no additional menu or action in between.
This article refers to the technical aspects of the Windows XP bootloader and provides background information needed to fully understand how to correctly dual-boot newer versions of Windows (including Vista, 7, and 8) with Windows XP.
If you’re not interested in the mechanics of the boot process and aren’t doing anything especially complicated, feel free to skip ahead to the step-by-step dual-booting instructions: Regardless of what you’re booting – and even what bootloader you are using – the basic boot process starts off in the same way.
Keep in mind that there’s only one active partition on disk 0, and that one and only one may exist at a time.
NTLDR can’t get its list of operating systems from anything other than the on the active partition on disk 0, so if you add another operating system to the mix, you end up with something like this: Basically, you have to go through a two-level boot menu, and you cannot – however hard you try – add both Windows XP entries to the main bootmgr boot menu. We’ve developed our own version of NTLDR, and bootmgr will load a separate copy of Easy LDR for each Windows XP entry in the menu.COM and the ebcd.00x files will still be placed on the unmounted boot partition.Each easyldr X file in the NST folder corresponds to a single ebcd.00X file in the root of the boot drive (the opposite also holds true).The code in the bootsector is then run, which typically loads a binary file from the root of the same active partition, which typically presents the user with a menu of operating systems to boot from (assuming there is more than one) and proceeds to boot into the selected OS….usually by loading yet another binary file which initializes the environment bringing the machine out of real mode and into protected mode with virtual memory and launches the kernel.While NTLDR/Easy LDR can be located anywhere, they will only look for their helper files and read their configuration from the root of the active partition on disk 0.