http://www.winsupersite.com/win7/ff_pcsafeguard.asp
Short summary - Windows SteadyState is now a feature of user accounts, and can be used to prevent a 'Guest Mode' account from making any permanent changes/damage to the system.
This is a cool and useful feature, I can already imagine it being useful for some of my friends and family members who manage to keep infecting their pc's. I would set it up so that programs that need to write data can do so to an unlocked drive, and the system drive remains clean. For many users its more harmful to give them the ability to install any random crap they want.
Short summary - Windows SteadyState is now a feature of user accounts, and can be used to prevent a 'Guest Mode' account from making any permanent changes/damage to the system.
This is a cool and useful feature, I can already imagine it being useful for some of my friends and family members who manage to keep infecting their pc's. I would set it up so that programs that need to write data can do so to an unlocked drive, and the system drive remains clean. For many users its more harmful to give them the ability to install any random crap they want.