Task Manager, previously known as Windows Task Manager, is a task manager, system monitor, and startup manager included with Microsoft Windows systems. Task manager, system monitor and startup manager IA-32, x86-64, ARM and Itanium (and historically DEC Alpha, MIPS, and PowerPC) Hard Disk Drive and Removable media type(s) are now shown, along with GPU temperature. Screenshot of Task Manager in Windows 10 after the '2004/20H1' update, showing Performance tab, with individual CPU cores shown.