Understanding User Account Control - User Account Control (UAC) is a feature that started with Windows Vista and is included in all editions of Windows Server that helps prevent unauthorized changes to your computer. If you are logged in as an administrator, UAC asks you for permission, and if you are logged in as a standard user, UAC asks you for an administrator password before performing actions that can potentially affect your computer's operation or that change settings that affect other users. Because the UAC is designed to make sure that unauthorized changes are not made, especially by malicious software that you may not know you are running, you need to read the warnings carefully, and then make sure the name of the action or program that's about to start is one that you intended to start.

Discuss the architecture of UAC and compare similar functionality available in Linux and other operating systems.