by Cactus » Mon Jul 12, 2004 3:13 am
You can't install the same copy of Windows XP on several different computers, because they have different hardware serial numbers. If you try, when the activation ID is checked against your original activation ID, they won't match, so Microsoft won't allow you to activate Windows XP. This is how Microsoft's product activation prevents casual piracy.
Example, if you loan your copy of Windows XP to a friend, when he installs it on his computer it will create a different activation ID. The problems will begin when your friend tries to activate Windows on him computer and this new activation ID does not match the activation ID of the previously installed version. Windows periodically checks the activation ID with the activation servers at Microsoft. Your computer will periodically report to Microsoft's activation servers, and you will not be asked permission beforehand.
If you reinstall Windows XP on what appears to be a different computer: If you replacing more than three hardware components in your computer may causes the software to require reactivation. When this happens, you will have about 30 days to call Microsoft to get permission to continue to use the product. If you cannot activate the product by then, you will not able to log on to Windows. You will need to call Microsoft so that you can get your product activated.
Microsoft activation scheme appears at this time to allow you to upgrade up to three hardware components at the same time without deciding that you have moved it to a different computer. After the new hardware has been installed, the activation system will automatically updates your activation ID to reflect your new hardware, and may transmits that to Microsoft's activation server. You can then replace additional hardware, without fear of exceeding the three-device limit. So don't plan on installing more than three new computer components at the same time.
And no..you must already have a Reg Key installed.
Cactus