Why does the close (cross) button in Windows gets special attention?

1. What is the purpose of cross button?
2. Which button is used to close a window *?
3. Why is my close button not working?

What is the purpose of cross button?

(eXit button) Also called a "close" or "exit" button, clicking or tapping the X removes the current window, dialog box or popup message from the screen. It is also used to delete text and graphics. Exit Button - Windows vs. Mac The X in Windows is always visible and clicking it closes the application.

Which button is used to close a window *?

If you want to close the active window, you can also click Close Current Window on the File menu or press CTRL+F4.

Why is my close button not working?

Press Ctrl + Shift + Esc to start Task Manager. When Task Manager opens, locate Desktop Windows Manager, right-click it, and choose End Task. The process will now restart and the buttons should appear again.