Opting out of DNS Assistance by changing your DNS settings in Windows Vista There are two procedures that you must complete in order to opt out of DNS Assistance:
Note: Setting the DNS server settings to static will opt out all computers including those connected through a wireless connection.
Find and record your current DNS server settings
Statically Assign your DNS Settings
Note: Windows Vista has added security features such as the User Account Controls. If you encounter the UAC during this operation, select the option that will allow you to continue.