>Hi,
>I found it is impossible to startup Windows 2K/XP if I changed my hardware configuration, such as motherboard and/or display card. It doesn't like that it will be auto-recognization again in Windows 9x/ME. It is not convenient for hardware upgrade.
>I wonder that is there any tools in Windows 2K/XP or third party products will force Windows 2K/XP to re-recognized the hardwares again?
>Thanks for help.

You can change your wideo driver to a generic one before upgrade.