Prior to final rollout, update organization policies regarding the use of the network and computers by employees. Include items such as password length and expiration requirements, and the level of approval needed to obtain remote dial-up privileges.
Update the corporate standards lists for hardware and software usage, and bring all computers into compliance with the updated list prior to deployment. Use the Windows NT 4.0 Hardware Compatibility List (HCL) to update your organization's hardware requirements. The HCL is updated regularly, and is available on the Microsoft web site at http://www.microsoft.com.
Tell the users the new standards. Make sure they know that these standards will be enforced prior to the installation, and that they must bring their computers into compliance.