How to make dual booting

Yes, You can dual boot Windows XP and Vista but you'll be having problem finding drivers if you install Windows XP on this computer since Windows XP supported drivers aren't available on Hp download page. HP has only Windows Vista and Windows 7 drivers for this System.
Hope this helps.
Good Luck.
Thanks for using FixYa.

If XP where your primary OS this would not be a problem. Since Vista is the Primary you are going to need to get a boot loader that will start before either OS does and use that to choose OS at bootup.

If you truely have Xp and Vista installed properly, you will see a dual-boot menu when the PC starts up... From there you would have the option to choose which operating system you wanted to start... Otherwise, if you dont see that menu, you still might have both OS installed but you would have to edit the master boot record...

Hi there.
The only way you can install XP on a Vista machine is to install "virtual XP" onto Vista using Virtual PC 2007.
Here is a site that will take you through the procedure step-by-step and gives links to download Virtual PC and install it onto the machine.
Please be aware that some drivers may not work whilst using XP when you have it installed.

http://lifehacker.com/software/windows/geek-to-live--run-windows-xp-inside-vista-with-virtual-pc-238071.php


Have fun, good luck and thanks for using FixYa!!

Not both. If you have the Vista recovery, go ahead and load it first, then load the XP by creating a new partition on your harddrive. Now you have a dual boot machine, and will need the XP device drivers. Not sure if you have them or not, so here is a place to get them.

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=3375995&prodTypeId=321957&prodSeriesId=3375953&swLang=8&taskId=135&swEnvOID=1093

How to dual boot Vista and XP (with Vista installed first) -- the step-by-step guide with screenshots

UPDATED | Got a Vista PC and want to install XP so you can dual-boot between them? Here's how to do it, in an easy, step-by-step format. Page 1 - Intro

Scenario: You want to install Vista on your PC alongside your XP installation, on the same drive. You have installed Vista already. (If you have XP installed first, check out our earlier tutorial on how to dual boot Vista and XP with XP installed first.)
Tutorial Summary: We need to shrink the Vista partition on the hard disk and create enough space for an installation of XP. This can be done in three ways - using the GPartEd Live CD, the DISKPART utility on the Vista DVD or the Vista Disk Management GUI - and we'll cover all three. We'll then install XP and install EasyBCD to reinstate the Vista bootloader which will be overwritten during the XP installation, and then use EasyBCD to configure Vista's bootloader to boot the XP partition.
Updated September 2008: This is an updated tutorial, based on our first Windows Vista/XP dual-booting workshop. The main differences are that we are now using Windows Vista SP1 and Windows XP SP3. EasyBCD has also been updated and this makes some of the steps in our first tutorial redundant - the whole process is now easier.
This tutorial has been tested on a VMWare 6 Workstation.

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VISIT THIS FOR THE COMPLETE TUTORIAL :
http://apcmag.com/how_to_dual_boot_vista_and_xp_with_vista_installed_first__the_stepbystep_guide.htm
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Its true. the Bios or HDD driver wont allow you to install Win XP on it.. This BIOS is compatible with only Win Vista. The only easy way to do it is by creating 2 partitions while installing vista. once vista is installed- install XP with Dual boot and than format the vista partition.

to achieve dual boot both XP and Vista, first u need to install xp and then vista on it as a fresh copy

try to download belarc advisor software. Run this in your vista OS and send it to me so I can check your hardware specs. This is the only way to avoid problems in the future or before you start the formatting.

You sound like you tried to install XP with Vista running - this will generate the message that you have received.

To install XP on your system, insert your XP disk into the computer and then restart it.

Select Boot From Disk during start up and this will lead you into the XP Installation.

Xp will not recognise Vista and will just overwrite it - deleting the current OS and formatting the C:\

Good luck.