HKEY_CURRENT_USER/Software/Microsoft/CurrentVersion/Policies

Launch Regedit and go to the following Registry Key:
HKEY_CURRENT_USER/Software/M*cro$oft/CurrentVersion/Policies
Under this key, there will definitely be a key named explorer. Now under this
explorer key we can create new DWORD values and modify it's value to 1 in order to
impose the restriction. If you want to remove the Restriction, then you can simply
delete the respective DWORD values or instead change their values to 0. The
following is a list of DWORD values that can be created under the Explorer Key-:
NoDeletePrinter: Disables Deletion of already installed Printers
NoAddPrinter: Disables Addition of new Printers
NoRun : Disables or hides the Run Command
NoSetFolders: Removes Folders from the Settings option on Start Menu (Control
Panel, Printers, Taskbar)
NoSetTaskbar: Removes Taskbar system folder from the Settings option on Start
Menu
NoFind: Removes the Find Tool (Start >Find)
NoDrives: Hides and does not display any Drives in My Computer
NoNetHood: Hides or removes the Network Neighborhood icon from the desktop
NoDesktop: Hides all items including, file, folders and system folders from the
Desktop
NoClose: Disables Shutdown and prevents the user from normally shutting down
Windows.
NoSaveSettings: Means to say, 'Don't save settings on exit'
DisableRegistryTools: Disable Registry Editing Tools (If you disable this option, the
Windows Registry Editor(regedit.exe) too will not work.)
NoRecentDocsHistory: Removes Recent Document system folder from the Start
Menu (IE 4 and above)
ClearRecentDocsOnExit: Clears the Recent Documents system folder on Exit.
Nolnternetlcon: Removes the Internet (system folder) icon from the Desktop
Under the same key:
HKEY_CURRENT_USER/Software/M*cro$oft/CurrentVersion/Policies you can create
new subkeys other than the already existing Explorer key. Now create a new key and
name it System. Under this new key, system we can create the following new
DWORD values(1 for enabling the particular option and 0 for disabling the particular
option):
· NODispCPL: Hides Control Panel
· NoDispBackgroundPage: Hides Background page.
· NoDispScrsavPage: Hides Screen Saver Page
· NoDispAppearancePage: Hides Appearance Page
· NoDispSettingsPage: Hides Settings Page
· NoSecCPL: Disables Password Control Panel
· NoPwdPage: Hides Password Change Page
· NoAdminPaqe: Hides Remote Administration Page
· NoProfilePage: Hides User Profiles Page
· NoDevMgrPage: Hides Device Manager Page
· NoConfigPage: Hides Hardware Profiles Page
· NoFileSysPage: Hides File System Button
· NoVirtMemPage: Hides Virtual Memory Button
Similarly, if we create a new subkey named WinOldApp, we can add the following
DWORD values under it(1 for enabling the particular option and 0 for disabling the
particular option):
Disabled: Disable MS-DOS Prompt
NoRealMode: Disable Single-Mode MS-DOS.