We have about 200 computers that show their computer name as "MINWINPC". Doing an "ipconfig /all" shows the original computer name but doing a "net user" shows the computer name as "MINWINPC". In the control panel applet - the original computer shows but the registry key: HKLM\System\CurrentControlSet\Control\ComputerName\ComputerName shows as "MINWINPC". Users can still access the network but administrators are unable to remotely access those machines. The fix appears to be as simple as changing the registry key back to the original computer name(and rebooting) but I would like to figure out what is causing the issue. Some of the machines seem to have the name change occur after they have received the latest round of patches from Microsoft after the reboot. It is not happening to all our Vista machines. I have changed the computer name back the original, uninstalled all updates from the day of the name change and resintalled the patches but have been unsuccessful in recreating the problem. Any thoughts?