Abstract
This article explains how to install correctly on the Windows XP computer, which is already installed Windows Vista. And as a further customize menu choice operating system to load.
Introduction
Of course, more correct sequence of the Windows installation is a younger version before Senior. In this case, the possibility of downloading more than the old system, and after installing a new operating system appears select-bootable system.

It is noteworthy that, despite the possibility of the coexistence of Windows XP and Windows Vista on the same computer, there are some limitations. For example, the point of recovery are removed after loading Windows Vista Windows XP.
But what to do if Windows Vista already installed on the computer and must be installed Windows XP. Article is designed to help circumvent the pitfalls of those who plans to install Windows XP after Windows Vista.

If you install Windows XP after Windows Vista, as in the case of Windows 2000 after installing Windows XP, as a result of lost opportunity downloads to newer operating system. When you install an earlier version of Windows installation program overwrites all data in the main Boot Record (MBR) and boot your boot sector, files. Earlier versions of Windows are incompatible with the new method of loading a new system. In particular, Windows Vista uses a new data warehouse loading configuration. This repository contains menus and download all the information on the operating systems installed on the computer. Consequently, the Boot.ini file from an earlier version of the Windows operating system can not be used for its launch.
Baseline data
Computer-administered Windows Vista (in this case, used Business edition).
Hard disk contains two sections: C - with the established Windows Vista and D - section, which will perform the installation of Windows XP. Both the main section, is an active C.

CD/DVD- appointed drive letter E (to be used in the commands).
Windows XP installation disk for installation on the second section.
Windows Vista installation disk to restore downloads.
Installing Windows XP
Installing Windows XP does not specifically allocated and dwell in detail on this issue does not make sense. Naturally during installation you must define a second partition.

After installing Windows XP operating system no choice when loading or, respectively, the capacity load Windows Vista will not.
Please note that the active section (C), which previously were located only a few files needed to boot Windows Vista, now enrolled downloads Windows XP.

Files Vista XP Files

Restoring loader Windows Vista

To restore the boot Windows Vista must take InstallCD Windows Vista
Boot from the installation disk Windows Vista
Select language installation and commissioning, while bearing in mind that we will need to enter a few commands, it is better to choose the language immediately enter USA
Choose the option "Restore the system" at the bottom of the window next to the choice of language.
Select your operating system in order to restore and click "Next"
Select the "Command Line".

In the command line, type the command
E: \ boot \ Bootsect.exe-NT60 All
The result will be the restoration of a basic boot of Windows Vista and boot code, which transferred to the controller boot Windows.
Since then loading Windows Vista will be restored, but still the choice of operating systems at computer will not be that we continue to correct.
Creating a dual boot configuration

Even if not quite correct sequencing of the installation of operating systems easy to organize their correct loading without resorting to complex manipulation or third-party programs. Using Windows Vista installation disk can be restored in the ability to upload this operating system, but by bcdedit utility customize boot two operating systems.