1. alt+f4
2. ctrl+space+c
3. click on close button at top-rigth at window
4. double click on top-left icon at window
5. single click on top-left icon at window and click close
1) ALT+F4: Closes the current window; 2) ALT+SPACE - Displays the main window`s System menu. From the System menu, you can restore, move, resize, minimize, maximize, or close the window. 3) CTRL+F4 - Closes the current Multiple Document Interface (MDI) window. In internet explorer, Cntrl+W closes the window.
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Answers
just open something which is very heavy and your brower automatically close the window. but it must be very heavy... hehe