Task Manager is a smart small utility in Windows XP that provides us information about applications and processes running in our computer. In the task manager, we can see the status of the programs that are currently running and choose to end programs that have stopped responding.

1. Firstly, from the Start button click ‘run’ and start Regedit.
2. Go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\
3. Create a new key called “System”.
4. In System, create new DWORD value: DisableTaskMgr
5. Set the data value to 0 to enable Task Manager.
6. Set the data value to 0 to disable it.