Use hard disk with installed Ubuntu in another PC

[Cheesemill]

Also bear in mind that if you do manage to get Windows running, it probably won't be legal.

The version of Windows supplied with machines is nearly always the OEM version. It is licensed to the machine on which it is first installed and this license isn't transferable to a different machine.

[Resistent]

Also bear in mind that if you do manage to get Windows running, it probably won't be legal.

The version of Windows supplied with machines is nearly always the OEM version. It is licensed to the machine on which it is first installed and this license isn't transferable to a different machine.

Then, well, I have to buy a Full Windows 8 and will overwrite the Windows XP OEM.
.. There is another Windows Application what I need, for a video surveillance system.