User Account Control Settings in Windows 7 and Windows 8.1
Go to User Account Control Settings. Type in UAC, or go to the System and Security applet. Click on the “Change User Account Control Settings” link. BTW, you can also type in this command from the Windows 7: Managing User Accounts and Parental Controls With Windows 7, everyone who uses your computer can have their own user account. This allows each person to have his or her own settings, and it allows you to set up Parental Controls to limit the types of games and programs your children are able to use. User Account Control in Windows Vista and Windows 7
How to Change User Account Control Settings in Windows 7
The following describes the three types of accounts on Windows-based computers and then helps to determine your user account type. Standard User accounts are for everyday computing. Administrator accounts provide the most control over a computer, and should only be used when necessary.
If the users are using Windows XP, its very easy task. You can disable "Switch User" option using " User Accounts" applet in Control Panel. But its not that easy under Windows Vista and 7 as there is no such option available anywhere in Control Panel. So how to disable "Switch User" option in Vista and 7? Although its hard but not impossible.
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