But the thing is this. You said you are selling "X" right. So how can you justify telling whoever buys it from you not to go to Windows Update and get updates? Because the minute they do the system will be logged as pirated.
So in reality you would be selling pirated software to someone. How do you explain that? Jsut buy a XP OEM CD from NewEgg and get on with it. There is no way you can accomplish what you want with selling one of the PC's off. At some point in time the person who buys the PC will want to get updates for it. Which they wont. Then they wont be happy with you at all and possibly ask for a refund.
So in reality you would be selling pirated software to someone. How do you explain that? Jsut buy a XP OEM CD from NewEgg and get on with it. There is no way you can accomplish what you want with selling one of the PC's off. At some point in time the person who buys the PC will want to get updates for it. Which they wont. Then they wont be happy with you at all and possibly ask for a refund.