Question : Windows 7 dual boot after the fact

nstalled Windows 7 Enterprise 64bit successfully on one machine.
We still have the original Windows XP Pro SP3 Acronis image stored on a
second hard drive on that PC. (It has two hard drives - one is for the OS,
the other for data plus the page file).
We know we can create a new system drive active partition by resizing the
current Windows 7 one, and restore the Windows XP image to it.
Will that make it a dual-boot PC by itself?
Or, what else has to be done? Like modifying their boot files, for instance.
And how?
We wish to avoid a solution that avoids reinstalling either OS.
We did not envision a dual-boot scenario earlier.

Answer : Windows 7 dual boot after the fact

The easiest way to do this (not necessarily the most obvious) is to get a copy of VMware Workstation, download VMware Converter, convert the physical image to a Virtual Machine and run the XP machine as a guest. There are other vm applications (XP Mode, Virtual Box) but I much prefer VMware. ... Thinkpads_User