Sovle "windows cannot find rundll32.exe" when access Control Panel Item

When  trying  to change the display settings or access the control panel items, you will get a Windows  error message say “Windows cannot find’ CWindowsSystem32rundll32.exe’. Make sure you typed the name correctly,  and then try again. To search for a file, click the Start Button, and then click Search. “

This might be the viruses has eat the Rundll32.exe or there something wrong in the registry key.

Here is the best solutions to solve this problem:

1- Make sure the file “rundll32.exe” is exist in your system. Or please copy a new one from other working windows and paste into C:windowssystem32 then restart your pc.

2- Check the registry key by go to the following location:

HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurre ntVersionPoliciesExplorer

Then double click on the key “RestricCpl” and set value to “0″. Then restart your pc.