(M)aximus (M)obile TaskManager (MMTaskManager) is a small and simple task manager that allows you to easily and quickly switch between current running applications. It allows you to close any selected application or all applications. It also reports how much memory each of the application uses to see which application takes up the most space in memory. And display the total amount of memory your device has as well as available memory…
MMTaskManager v1.6
Who need the task manager on HTC HD2? Yup. HTC did not put the usual task manager on HTC HD2 desktop. You need to do several clicks in order to dig it out. It is not very user friendly. But I can tell you that I don’t need to use task manager to end any program after using it for 1 week. HTC HD2 has more than enough memory for you and me. 
Touch X Taskmanager
“Task Manager has been disabled by your administrator”. I have never see this before when I write this. Why administrator need to disable Task Manager? Anyway… Here are some solutions to this re-enable Task Manager again.
Solution 1:
Type this “REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f” command at Windows ‘Run…‘
Solution 2:
Use Registry Editor (Regedit.exe) to edit the DisableTaskMgr value from 1 to 0 which located at [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\ System]
Solution 3:
Type “gpedit.msc” command at Windows ‘Run…‘. Under “User Configuration / Administrative Templates / System / Ctrl+Alt+Delete Options / Remove Task Manager“, change Remove Task Manager to Not Configured or just disable it.
All these solutions should help you solve “Task Manager has been disabled by your administrator” issue. 
