Triple booting Question

[DCM]

I have set up my computer as a triple boot system. I have Windows 7 Professional 32 bit , Windows XP, and Windows 7 Professional 64 bit. This setup works fine.

Originally, I did this so that with Windows XP, I could still run devices and software that would not run on Windows 7. I added the 64 bit Windows 7 to experiment with it and see if it would run all the software and hardware that the 32 bit version of Windows 7 will run. It doesn't.

Also, my thoughts were that if one of the operating systems failed, I would have a backup operating system to work with while restoring the failed system.

I have three hard drives and have two operating systems on one drive and the last on another. I may move one operating system to the drive that currently does not contain one.

If one of the operating systems fails, will the boot manager still appear so that I will have this choice?

Thanks