Virtual PC XP images drop off the network

Hi Guys.

I have a small issue with Microsoft Virtual PC 2007. When ever i create an XP image in virtual PC after a week or so it will just drop off the domain for no reason.

The steps i follow are below.

* Create a image from RIS
* once complete login as admin and change computer name to VM1, VM2 etc
* reboot and its all fine

The computer account in AD is fine and nothing changes. The main reason i use this is to test my packages out i create once i am happy i reset the image back to default.

I have also tried to RIS the machine with a premade computer account via the guid and i still get the same problem both ways. I also try to drop the domain and readd it but it still locks out and cant contact the domain.

i also drag the computer account into different OU's for testing but this should effect it in anyway as at no stage does it leave the domain.

Any ideas or if you have the same issue then please let me know. i also use VMware and have no such issues as i do with virtual PC.

i only have this issue with XP i run 2000,server 2003 and vista and i dont have any issues with them. i was thinking maybe it was the RIS image but i have rolled out 500 odd xp images over the year and not one has had this problem

Cheers
tasdojAsked:
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Brian PierceConnect With a Mentor PhotographerCommented:
This can happen if users shoutdown the Virtual PC and don't save the changes. On a domain computers have accounts with passwords just like users. Every 30 days - by default - computers automatically negotiate a password change with the Domain Controller.

If a VPC does this, then you shut it down without saving changes the XP machine reverts to its old password - which is then out of sync with the DC - problem.

You can stip this happening by editing the security policy Computer Configuration->Windows Settings->Security Settings->Local Policies->Security Options and ENABLE the "Domain member: Disable Machine Account password changes" - careful you have to ENABLE the DISABLING of the setting.
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tasdojAuthor Commented:
my god i totally didnt think of that and yes it would explain this behaviour as some of the test images i use havent been used in 30 days :(

thanks for your great response and fast answer ;)
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