I just need to backup disk coming from a Windows XP personal computer (dead cpu and/or motherboard) and restore it (with all applications and settings) on a different PC with different motherboard.
Is it possible?
If the PC has a different motherboard, you need to do a
Whilst the Sysprep tool is much better in Windows Vista and Windows 7, you have to use the original in XP that can be very awkward (especially after service packs or patches have been applied).
Once you have done this, it will put your machine in a state that is untied to the hardware and ready for cloning - however, it may wipe out local users and as it regenerates SIDs, you may have a problem if other machines connect in to you.
This is the "official" way of cloning machines... If you simply want to move your machine, I recommend an off the shelf solution such as Acronis True Image which will allow you to clone easily.
Please note that whatever solution you choose, if the hardware has changed significantly (which it will have), you will probably need to reactive Windows. If you have an OEM edition, this will break the license - If you have an FPP or similar, you will be fine.
In addition, if you are technical, you may find this article interesting.
This is indeed possible. It's done in corporate environments all the time. The problem is that when you run Windows XP on the new machine, if you are using an edition that is not a corporate/volume license version, the system will recognize that the hardware has changed and you will be required to re-validate/re-activate Windows. This will likely work once or twice via automated means. If you keep trying to do it, you will likely get a response requiring you to call Microsoft to justify what you are doing.
It can be done using a variety of utilities, such as Norton Ghost or Acronis True Image.
I should point out the obvious that if you migrate your Windows installation to a new computer and you keep using it on the old computer, this is a violation of your license and is illegal. You must own a separate license for every computer you intend to use Windows on.
I would also point out that I did this exact same thing when I bought a new computer to replace an old one. So I know it can be done. I ghosted the image, restored it to the new computer, and all I had to do was re-enter my key and re-activate my Windows XP the first time I logged in.
No it is not possible. Windows is more or less bound to the hardware is installed on. That's why there is no real option of windows booting from an usb stick. The only thing you could easily do is to export your user and then transfer this to a clean new installation of windows xp.