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21. View/Change System VariablesHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\Env ironment (Windows 2000) All of the values in this key are system variables that can be used by programs. You can make changes to the variables. 22. Force IE to Open with Full ScreenHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\fullscreen This STRING value set to "yes" will force new IE Windows to full screen. Note: This does not work for me on my Windows 2000/IE 6 system. 23. Change the Name of the Recycle BinHKEY_CLASSES_ROOT\CLSID\{645FF040-5081-101B-9F08-00AA002F954E}\LocalizedString Changing the text at the end of this value from Recycle Bin to the text of your choice will change the name of the recycle bin. 24. Restrict Users from Changing File TypesHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Exp lorer\NoFileAssociate This REG_DWORD value set to 1 will prevent users from changing file typeassociations. Setting it to 0 will allow them to make changes. 25. Regedit.exe FavouritesHKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Applets\Reged it\Favorites (Windows 2000) The Windows 2000 Registry Editor (Regedit.exe) provides you with the ability to add frequently visited registry keys to a Favourites menu. This enables you to open those registry keys quickly without having to browse through the Registry Editor for them. This registry key is where the Favourites are stored. 26. Edit Windows 2000 “Open With…” ListKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.extension\OpenWithList (where extension equals the file extension that you want toopen)(Windows 2000) This string (REG_SZ_ values) identifies a program that will open files of this type. Youcan remove values if you don’t want those programs to open that file type, or you can additems to add new programs. 27. Restrict Windows Setup Option from Add/Remove Programs AppletHKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Unins tall\NoWindowsSetupPage (Windows 2000) Settings this REG_DWORD to 1 will prevent users from seeing the Add/Remove Windows Components Button in the Add/Remove Programs applet of the Control Panel. 28. Disable Personalized MenusHKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\E xplorer\NoInstrumentation (Windows 2000) This REG_DWORD set to 1will disable personalized menus. 29. Working with SharesHKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Shares All of the shares on your computer are listed here. To remove a share, delete the key. It is also a good way to migrate shares to a new server. If you rebuild a server, you can export this key and associated sub-keys from your old server and import them on your new server and all of the shares will be set up for you. 30. How Many Processors Does Your O/S SupportHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\RegisteredProcessors(Windows 2000) Check the registry value to see how many processors your version of Windows supports. This registry key value is informational only. In other words, changing the value to 128 won’t enable your version of Windows to support 128 processors. 31. Restrict Users from Accessing Windows UpdateHKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoWindowsUpdate To disable Windows Update on a per user basis set (or create) this DWORD value to 1. If you want to enable WindowsUpdate, delete this value, or change it to 0. 32. Clear the Windows Run Most Recently Used ListHKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Run MRU Deleting the values in this key will clear the log list of commands that is created when you use Run on Windows’Start menu. 33. Change Main Network Provider (Novell or NT)HKEY_LOCAL_MACHINE\Microsoft\Windows NT\CurrentVersion\Winlogon (Windows 2000 Professional) The GINADLL value is set for either a Microsoft logon screen or a Novell login screen. If you want to use a Novell login screen, make sure that the value is NWGINA.DLL. If you want to use a Microsoft Login screen, make sure the value is MSGINA.DLL. Then close the Registry Editor and restart the system. 34. Remove Shutdown from the Start MenuHKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoClose This String Value set to 1 removes the Shutdown option from the Startmenu. Change it to 0 to allow shutdowns. 35. Password ReminderHKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon\PasswordExpiryWarning(Windows 2000) This key in Windows 2000 sets the number of days before a user’s password must be changed. 36. Export Dial-Up Networking SettingsHKEY_CURRENT_USER\RemoteAccess\Addresses This key is where the Dial-Up Networking settings are stored. 37. Force Windows to CrashHKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\i8042prt\Parameters\Cr ashOnCtrlScroll (Windows NT/2000) Set this DWORD value to 1. After a reboot, hold down the right CTRL key and hit the Scroll Lock key twice. This generates a BSOD. This is intentional as it can be used for testing purposes. 38. Hide the File Menu in Windows ExplorerHKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explo rer Change (or create) the NoFileMenu value to 1 to hide the File menu, or 0 to show it. 39. Critical Update Notification DelayHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsUpdate\Critical Update\CurrentDelayInterval This REG_DWORD value is the value in seconds between prompts from the Critical Update Notification. The default is 86,400 seconds (1 day). 40. Disable CD-ROM AutorunHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdrom Changing this value to 0 disables the CD-ROM autorun feature. A value of 1 enables autorun.
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