Task Manager Has Been Disabled

To enable Taskmanager follow the steps below

Method 1:

Using the Group Policy Editor in Windows XP Professional

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

              Under User Configuration, Click on Administrative Templates

              In the left pane double click System, then on Ctrl+Alt+Delete Options

              Find Remove Task Manager and double click it

              Choose the option "Not Configured"  and click Ok.

              Close the Group Policy Window.

Method 2:  Using Run command
                  

   1.      Click on Start, Run and copy paste the following command exactly and press Enter

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f

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