At the same time, how to install XP and vista

My machine is now installed vista but a lot of games to play are not, like a loaded XP systems, can not in the format now out of the system re-installed XP system, how can the equipment, I would like to thank the

Unfortunately have to tell you not want to double the system first, then installed xp, re-installed vista.
You have installed xp no vista after vista in a virtual machine installed in xp, so they are safe…….fish and bear's paw can not.You have two systems co-exist.XP can only be installed on the C disk.to In addition to the vista installed on the other disc C plate! because the Microsoft operating system designed only for the default from the junior to senior version.similar to upgrade!! install multiple operating systems, to be followed “from the version of the low-to high-install version of” ( XP-Vista).However, many local brand (that is all the fast) is pre-installed Vista system.If this basis, re-install XP, can only enter the XP system.Netizens should be some desire to “achieve Vista XP with dual system “to provide a successful, the most convenient methods of disposal are as follows (with Vista installed on the C disk, XP installation disk in D, for example) –
first step:the installation of running VistaBootPRO.Download software And the use of the search.
The second step:Bootloader page, click on the tag:”Reinstall the Vista bootloader”, in order to rebuild Windows Vista's BootLoader, to allow the system to boot into Windows Vista.However, this step can only be completed To allow access to the system to start Windows Vista, can not start Windows XP.
Step Three:Click on “Diagnostics” menu item in the “Run Diagnostics”, to allow the system to find VistaBootPRO in addition to the existing Windows Vista other than the OS, to be analyzed In addition to that after the completion of the “Microsoft Windows Vista”, also known as the “Earlier versions of Windows” a, that is, our newly installed Windows XP, click the “Apply” for the completion of Windows Vista and XP dual boot Settings.