1. Task Manager (Taskmgr.exe), a GUI tool consisting of the four tabs (Applications, Processes, Performance, and Networking), is used to view or end a processes or an unresponsive application and used to gather CPU statistics and can be started from the command prompt by typing taskmgr and then pressing Enter or by using the key combinations CTRL+ALT+DEL and then clicking Task Manager.
Note: The Applications and Processes tabs provide a list of applications or processes currently active and enables you to end most items by clicking End Process. You cannot end some processes immediately, and you might need to use other programs such as the Services snap-in (started by typing services.msc on the Run line to view service information or to temporarily stop, pause, or disable services for troubleshooting or diagnostic purposes when logged on as an administrator or a member of the Administrators group), Task Kill (a command-line tool, used with a specified process identifier (PID) or any part of the process name -- found using Task List (Tasklist.exe) to end one or more processes -- to troubleshoot suspected faulty services or applications that stop responding or consume excessive system resources that might be adversely affecting the performance of a system, such as sluggish performance, slow screen updates, delayed response to network requests, or slow response to keyboard and mouse input), Process Viewer ((Pstat.exe) is a command-line Support Tool that enables you to view the status of threads, processes, and drivers running, [Q192463]), or equivalent tools, to end them.
2. Task Manager can be customized to increase or decrease the level of detail shown on the Processes tab. Click View, Select Columns, and then select or clear the columns wanting to add or remove.
3. The article Q314227] states the menu bar and tabs may not be visible in Task Manager if it is running in Tiny Footprint mode that occurs when a user double-clicked the empty space in the border around the tabs which allows resizing Task Manager. Double-clicking this empty space again returns it to the typical display.
4. Has "Group Policies" been used and the use of WTM been circumvented on your system as explained in this link, or perhaps the "fix" described on the DougKnox site that can be downloaded and used?