A.
1. First of all go to Start>Run, then type: regedit
2. Go to HKEY_CURRENT_USER > Software > Microsoft > Windows > CurrentVersion > Policies
3. Rightclick on Policies>New>Key>name it into ActiveDesktop
4. Make a DWORD value in ActiveDesktop, Rightclick in ActiveDesktop. Choose New. Choose DWORD Value.
5. Name it into NoChangingWallpaper. To make it active, Doubleclick it, then you should change the value into 1
If you've done, you must log off then log on again Then another user can't change your wallpaper.
And These are another tricks :
B.
Go to HKEY_CURRENT_USER > Software > Microsoft > Windows > CurrentVersion > Policies>Explorer then make values :
- NoActiveDesktopChanges
- NoChangeStartMenu
- NoControlPanel
- NoEntireNetwork
- NoFileMenu
- NoFind
- NoFolderOptions
- NoNetConnectDisconnect
- NoNetHood
- NoPropertiesMyComputer
- NoRecentDocsHistory
- NoRecentDocsMenu
- NoRun
- NoSetFolders
- NoSetTaskbar
- NoSMHelp
- NoStartMenuMorePrograms
- NoTrayContextMenu
- NoTrayItemsDisplay
- NoViewContextMenu
- NoWorkgroupContents
- NoFileSharingControl
- NoNetSetup
- DisableChangePassword
- DisableTaskMgr
- NoDispCPL (No Display in Control Panel)
- Disabled (Nonaktifkan Command Prompt)



