From CSS Wiki
Accessibility Features For Login Screen
The Ease of Access options on the login screen can be started by clicking on the Ease of Access icon in the bottom left of the screen, or by pressing Tab until the icon is highlighted and then pressing Enter to bring up the options.
You can apply the options by clicking on the relevant checkbox and then clicking OK or pressing the Tab key to move to the desired accessibility option, such as Magnifier. Pressing the Spacebar selects the option. Pressing Enter will apply the selection.
Start Magnifier After Logon
There are two ways to start Magnifier after logging on:
- Start Magnifier from Quick Access to common tools for use in the current session, or
- Turn on Magnifier so that it automatically starts each time you log on.
For complete information and instructions, please see: http://www.microsoft.com/enable/training/windowsvista/magnifier.aspx