One way to prevent others from changing settings or configuration on your computer is to hide the icon / applet in the Control Panel. Way is as follows:
Go to go to the registry key:
Key: HKEY_CURRENT_USER \ Control Panel \ do not load
Value Name: xxxx
Data Type: REG_STRING
Xxxx value depends on what the icon will be hidden. Suppose you want to hide the System icon, then filled with xxxx sysdm.cpl.
Below is a description of the Control Panel icon:
Accessibility Options = access.cpl
Add Hardware Wizard = hdwwiz.cpl
Add or remove programs = appwiz.cpl
Display Properties = desk.cpl
Game Controllers = joy.cpl
Internet Properties = Inetcpl.cpl
Mouse Properties = main.cpl
Network Connections = ncpa.cpl
ODBC Administrator = odbccp32.cpl
Phone and modem Options = telephon.cpl
Power Options = powercfg.cpl
Region and Language Options = intl.cpl
Sound and Audio Devices = mmsys.cpl
Speech Properties = sapi.cpl
System Properties = sysdm.cpl
Date and Time Properties = timedate.cpl
Users Accounts = nusrmgr.cpl.