Windows 8 introduced a completely different task manager which is very different from the Windows 7/Vista/XP task manager. While it has a few advantages and improvements, it is also has bugs, regressions and missing functionality. That is why some users prefer the classic Task Manager app. It is faster and more usable. But there are times when you might occasionally need functionality from the new Task Manager such as analyzing a wait chain or monitoring disk usage without firing up Resource Monitor. So here's a AutoHotkey script to open both Task Managers.
Many users are not happy with the new "modern" task manager which was introduced in Windows 8. Windows 10 comes with the same Task Manager app. Although some of its functions are not bad, like the performance graph, one might not really need them. The old Task Manager is faster, bug-free and provides a more reliable workflow of task management for me. It is familiar and the new one does not even remember the last active tab. So I am definitely one of those who want the good old, more usable Task Manager back in Windows 10. Here is how you can get it back without replacing any system files or modifying permissions.