“PC Safeguard”, as it’s called in the Windows 7 user account settings, prevents specified standard user accounts (cannot be applied to admin accounts) from making permanent and unwanted changes by removing all changes and files saved after the user logs off.
To enable this feature, click on the “Set up PC Safeguard” link when managing a user account. Select the “Turn on PC Safeguard” option, apply and wait approximately 5 minutes whilst it ponders about the question of life. It might seem like it’s not responding, but trust me, the magic is happening.
….you can also tweak the Safeguard feature to allow users to access individual hard drive volumes. One scenario where this might be useful is to set up a small 1GB partition where the user can secure their files without resorting to removable media.
Now when that user logs on, they’re presented with this message window reminding them their files will be removed after log off. Also when they try to add files to their user folders, a popup appears, reminding the impending vaporization.
Note: Microsoft has offered a tool “Shared Computer Toolkit” now “Windows SteadyState” to both Windows XP and Vista users to do exactly this function and a little more.
Source:→ Long Zheng