Want to downgrade from windows Vista to Windows XP

I suggest to upgrade to Windows 7 instead of downgrading because Windows 7 has better performance than Vista. But if you still want to go to Windows XP you have 2 choices.
The first is to format the drive where Vista is installed and to install fresh copy of Windows XP.
Second choice is to install Windows XP as second OS and at the end of the installation, at activation step, you have to choose activation by Phone. Then you should call Microsoft Helpdesk and provide the code of your Windows XP to the operator and tell him that you need downgrading Vista code. Then he will guide you to the rest of the activation and the downgrade of Vista.

Good luck!

You could downgrade your Windows 7 Operating System to either Windows XP or Windows Vista Operating System. The term downgrade became popular during the usage of Windows Vista. At this time the Operating System was downgraded to its lower version i.e to Windows XP. This Operating System is most popular and highly user friendly. It is well known for its efficiency and performance. get more information and help for downgrading windows 7 to windows xp. hope this helps you.

Good Luck
Michel

Before downgrading from Windows Vista to Windows XP you should always confer with your computer's manufacturers website to look up your model and see if they support the downgrade. Often times the only way for you to downgrade is to have it done before receiving the computer, since a majority of the hardware on the laptop is made specifically for Vista and is not backwards compatible. Looking on the HP website, I see that they only offer a very limited number of Windows XP drivers for your system, which tells us that downgrading is not possible.
I would recommend that you consider not downgrading but rather upgrading to Windows 7 as it is a much more stable and functional OS than its predecessor Windows Vista. You can even run Windows 7 in Windows XP compatibility mode so you can enjoy the benefits and upgrade of Windows 7 but still have the Windows XP feel and functionality. I will be writing a How-To/Tip on Windows XP Compatibility mode today so you can be on the lookout for more information on that.

Start-up your computer and just install windows-xp on it and remember that you will always select operating system at start-up after doing this.

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Now you need to find a Windows XP install disk that can match the licence number printed on the sticker at the back of the laptop and reinstall XP using your serial key.
You will have to download and install also the XP drivers, you find them on manufacturer website.

See links below on reinstalling XP on a Vista system:

FAQ: Giving up on Vista? Here's how to downgrade to XP

How to downgrade from Vista to XP News

How to Downgrade from Vista to XP

Downgrade Vista to XP pro

downgrading from vista to xp

plz check the drivers for xp for your model in manufacture website

Good day

If you have all the Windows XP drivers for your PC, then it is not a problem to downgrade to Vista, although i will not advise downgrading, as Microsoft mentioned that they are only going to release the last Service Pack for XP, then there will be no more Service Packs for XP, and only Support for Vista.

Hope this helps you to make up your mind

Regards

Yes, its possible to downgrade from vista to XP, you just need a installation CD of XP.

You need to start windows setup straight from cd. To do so you may need to change the boot sequence from bios.You will also need a bootable windows xp cd (not the upgrade version). Setup xp as new installation. Ensure you can get all necessary drivers and software for windows xp.

Hint: Vista works fine if it has enough ram memory, and you wont lose your valid licence and all software provided with vista.

cheers

Only OEM editions of Windows Vista Business and Vista Ultimate can be downgraded to Windows XP Professional. Microsoft offers no downgrade rights for Vista Home Basic or Home Premium.
Sorry