Changes

For minor updates, the Microsoft Security Essentials program updates itself or is updated through Windows Automatic Updates. for Major upgrades, such as from version 1.x to version 2.0, the program must be upgraded manually by an Administrator (not sure about Power User), not by a Restricted / Limited user. After Either using Help → Check for software updates, or after being on for an amount of time, the software will prompt for an upgrade, choosing this as a Restricted / Limited user does nothing.