Task manager is a very strong utility tool for Windows users. You can see the processes, prioritize them, end inactive or non-responding processes and many more things. But suddenly one day you get this error message like,

Task Manager has been disabled by your administrator

Don't worry. There are not 1 but 4 ways to deal with this problem.

Solution-1

Click Start, Run and type this command exactly as given below:

Better copy and paste it to be exact.

Solution- 2:

  • 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

Solution- 3: (recommended for XP users)

  • 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.

Solution- 4:

If you find it troublesome to do anything with the registry or settings all by yourself then just download and run this REG fix and double-click it and you are done!

[source: windowsxp.mvps.org]