In this tutorial we’ll show you how to fix “Task Manager is disabled or greyed out” in Windows 10, by using Group Policy, Registry Editor or Command Prompt. Task Manager is probably disabled by an administrator or a virus or spyware. “Task Manager has been disabled by your administrator.” Unable to access Task Manager by pressing Ctrl+Shift+Esc? When you right-click on the taskbar, you might find that “Task Manager” option has been grayed out:Īlso when you press the Windows key + R and type taskmgr, you’ll receive the following error message: