Task Manager has been disabled by your administrator

Sometimes when your computer gets infected with some virus, you must have come across this problem. So to get your Task manager back here are some ways by which you can get your Task manager back..

Method 1

Click Start, Run and type this command exactly as given below: (better - Copy and paste)

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Method 2

Download and run this REG fix and double-click it.

Method 3

• Click Start, Run and type Regedit.exe
• Navigate to the following branch:

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

• In the right-pane, delete the value named DisableTaskMgr
• Close Regedit.exe
• 
  

Method 4:  
       Using Group Policy Editor - for Windows XP Professional

• Click Start, Run, type gpedit.msc and click OK.
• Navigate to this branch:

User Configuration / Administrative Templates / System / Ctrl+Alt+Delete Options / Remove Task Manager

• Double-click the Remove Task Manager option.
• Set the policy to Not Configured.

You can also check how to retrieve registry when disabled