Try pushing Alt + F4.
It is not a button. It is the combination of ALT+CTRL+DEL that opens Windows Task manager.
The button on the driver's door that disables all windows except the driver's window. Push that button and all power will be restored to all windows. If not, that button may be defective.The button on the driver's door that disables all windows except the driver's window. Push that button and all power will be restored to all windows. If not, that button may be defective.
It makes a Windows OS window smaller when maximized. [Its the button at the top right of the window that looks like a screen.]
In systems running on windows xp and other previous versions of windows pressing Ctrl+Alt+del will produce the windows task manager window< in windows vista and windows 7 the same procedure is used but you will be redirected to a screen similar to the login screen with a list of buttons, the last button is labeled Task manager and clicking it will produce the windows task manager window.
window manager
On a window's Title bar, what does the button with the underscore symbol do?
Windows Manager
Yes, it does.
The task manager in Windows 8 can be found by pressing the ctrl, alt and delete buttons at the same time and selecting task manager from the list window that appears.
windows manager
Apparently, Roblox is being blocked. When this happens, a window should appear, saying that it's blocked. Press the unblock button, and there you go.
Click Startmenu/flag button, search for and run Windows Defender Settings.