motorwu

Thanks your reply, the 25 minimum is ok for us, I can spend 2 day to build up to 25 times of reformat and install Vista. But what we concern is that when we deploy Vista and make a image for all users in our office, the users Vista won't contriute count to KMS, then we should maintain the count manually... You need 25 unique computers connected at once to activate and use the KMS server, it does not just count vista computers that have activated with it. so you will need to get vista onto 25 computers

Dear all, We just build the KMS server on Windows 2003 and want to make it can activate the Vista client. As Microsoft website said, we need 25 client connect to KMS to request activation then the KMS can activate all clients. We just a testing lab, so I just use one PC to format and install Vista then activate it to increase the count. I don't want to install and insatll 25 times to make KMS count to 25. So I sysprep (sysprep /generalize)the Vista as Microsoft website said to change its CMID. After sysprep, I try to connect to KMS server to increase the count, but it didn't increase, remain the same. I also try the slmgr -rearm to reset the CMID, it doesn't work. I can reformat again and install 25 times to increase count to 25. But after testing period, all our users will use the same vista image (after sysprep), the KMS will fail after 30 days, because it does not increase any more! How to do sysprep to make a image for my users and maintain the count on KMS server ? Thanks.