If you are
getting error, "Task Manager has been disabled by your
administrator" , when trying to launch task manger on Windows machine then here is a simple solution for
you.
Click “Start >> Run” and
type following command exactly as given below and click OK.
REG add HKCUSoftwareMicrosoftWindowsCurrentVersionPoliciesSystem
/v DisableTaskMgr /t REG_DWORD /d 0 /f