Usually whenever a dialog box opens you must click a button to enable a default action. For example, if you close...
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a Word document you receive a dialog box asking if you want to save changes and you want to choose "yes." Here's a quick tip to help you save time wasted on moving the mouse pointer to default button on the dialog box.
Open Control Panel
-Double click on "Mouse" to open the "Mouse Properties" dialog box.
-Go to the "Pointer Options" tab.
-Under the "Snap To" label header, check the box that says "Automatically move pointer to the default button in a dialog box."