When you start an app, the operating system creates a process for the executable file of the app. It contains the program code and its current activity. Windows assigns a special number known as Process Identifier (PID) which is unique for every process. If you want to check which apps you have running at a given moment, you can save the list of running processes to a file.
Windows 10 inherited its Task Manager from Windows 8. Compared with the old one from Windows 7, it is a completely different application. It features a simplified mode, and an advanced mode with more detailed performance information. There's added management of startup apps with a very useful "startup impact" calculation feature. Yet another interesting feature of the Task Manager is the ability to copy detailed information of an application or service with one keystroke.
Windows 8's completely new Task Manager has many changes compared to the Task Manager in Windows 7 and below. Now, it features a simplified mode, and the advanced mode has more detailed performance information. There's added management of startup apps with a very useful "startup impact" calculation feature. But one of the real improvements is that you can now easily copy detailed information of an application or service with the modern Task Manager of Windows 8.1/8 with a quick and easy keystroke. Let's see how.