• Log in to your GoDaddy
• Select the domain to access the Domain Settings page.
• Additional Settings >>  Manage DNS.
• In the Nameservers section, select Change.
• Enter my own nameservers (advanced): Enter the nameservers  names that you received from NixWind
• Select Checkbox “Yes, I consent to update Nameservers for the selected domain(s).”
• Save

Note : It will take up to 48 hours for all changes to take full effect. During this time, your website, email and other domain services may be interrupted.