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.
Of course it would be frustrating if the task manager was disabled for certain reason, but fortunately there’s a method to enable it back using a registry tweak. You can also choose to disable it with this method.
- Firstly, from the Start button click ‘run’ and start Regedit.
- Go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\
- Create a new key called “System”.
- In System, create new DWORD value: DisableTaskMgr
- Set the data value to 0 to enable Task Manager.
- Set the data value to 0 to disable it.
Once you done the above, it should work right away. If you were block from accessing the registry editor in the first place, then try this solution.

September 10th, 2007 at 2:35 am
[...] on the “Processes Tab”. If you can’t open the Windows Task Manager, use this solution. You will get a list of processes running just like in the screenshot [...]
September 27th, 2007 at 7:56 pm
I think you’ve a mistake in step 6. It should be:
6. Set the data value to 1 to disable it.
December 25th, 2007 at 7:17 am
this method doesn’t work with my PC…..