This is a relatively easy way to hide the Control Panel Applets (Icons) you never use, making it quicker to locate the ones that you do use.
Using Regedit.exe navigate to:-
HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Policies\Explorer
and create a new D_Word value called DisallowCpl and give it a value of 1 (1 is "On", 0 is "Off")

Next make a sub-key to Explorer called DisallowCpl.
In the right hand window, for every Control Panel Applet you wish to disable you make a new Reg_SZ value with a number as its name. The data to disable the applet has to be its canonical name, a typical example being Microsoft.EaseOfAccessCenter.

And that's all there is to it!

To "see" the hidden applets again just change the value of the registry D_Word entry of HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Policies\Explorer\DisallowCpl to "0".
A simple .reg file to turn off Disallowcpl would be:
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"DisallowCpl"=dword:00000000
And to turn it back on:
Code:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"DisallowCpl"=dword:00000001
A full list of the canonical names which also usefully includes the CLSID numbers of the Control Panel Applets can be found here.