Using Group Policy Editor – for Windows XP Professional

* Click Start, Run, type gpedit.msc and click OK.

* The Navigate to this location:

Click on:

> User Configuration

> Administrative Templates

> System

> Ctrl+Alt+Delete Options

> Remove Task Manager

* Then double click the Remove Task Manager in the choices, and select the option (ENABLE)

* Click Ok. Now Try Right Clicking in the Windows Taskbar and see if the ‘Task Manager’ is grayed. If it is grayed and not clickable then good job.