Task manager disabled by your administrator……enable it

To open the Task Manager, you normally would do one of the following:
Press CTRL-ALT-DEL on the keyboard
Press CTRL-SHIFT-ESC on the keyboard
Right-click on a blank area on the start bar and choose Task Manager
Click on Start, Run and type TASKMGR in the run box and press Enter
Sometimes instead of Task Manager opening you’ll see the following screen. In these cases, you’ll have to follow the methods below to re-enable access to the Task Manager.

First we’ll begin with the various registry modification methods for correcting this problem.

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 the plus (+) next to Administrative Templates
Click on the plus (+) next tSystem, then click on Ctrl+Alt+Delete Options
Find Remove Task Manager in the right-hand pane and double click on it
Choose the option “Not Configured” and click Ok.
Close the Group Policy Window

Method 2: Change the Task Manager Option through the Run line
Click on Start, Run and type the following command exactly and press Enter
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f

Method 3: Change Task Manager through a Registry REG file
Click on Start, Run, and type Notepad and press Enter
Copy and paste the information between the dotted lines into Notepad and save it to your desktop as taskmanager.reg
————————————
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
“DisableTaskMgr”=dword:00000000
————————————-

3. Double click on the taskmanager.reg file to enter the information into the Windows registry

Method 4: Delete the restriction in the registry manually
Click on Start, Run, and type REGEDIT and press Enter
Navigate to the following branch

HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Policies\ System

In the right pane, find and delete the value named DisableTaskMgr
Close the registry editor

Method 5: Download and Run FixTaskManager program

Click on the following links and download the program FixTaskManager to your Desktop

Main Site
http://www.pchell.com/downloads/TaskManagerFix.exe
download this file
Double-click on the file FixTaskManager on your desktop and run it