Hi, I am new to Sysprep, but I into this situation as well. I hope you can assist me of when I should run the sysprep -generalize? Do I prepare the sysprep.inf first? Do I have to enter product key in the sysprep.inf too? Once the sysprep.inf is done, should I start sysprep -generalize command? Also, can I run this command options with sysprep -generalize, cd to c:\sysprep execute the command line "sysprep -reseal -mini -generalize -quiet" without the quotes. Greatly appreciate for all the help!