Remove System Properties from My Computer and Control Panel

Paste the following in notepad and save it with a '.reg' extension.

Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] "NoPropertiesMyComputer"=dword:00000001

Merge it with the registry.

To undo the effect delete the "NoPropertiesMyComputer"from the registry.