When you open My Computer in its default configuration on a Windows XP machine, you'll find a group titled Files Stored on This Computer. This group contains the Shared Documents link, as well as links to folders for all user accounts created on the computer. This feature is designed to provide multiple users on the same computer with the ability to easily share files.
To remove Reply To All from the Standard toolbar, do the following: On the Standard toolbar, click the drop-down control at the far right of the toolbar. Choose Add Or Remove Buttons. Select Standard. From the resulting list, uncheck Reply To All.
1- Run regedit 2- Find and go to below key: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Current Version 3-Change your name in following subkey :Registered Owner