Windows Vista / 7 change Double Click to Single Click

Reference: http://www.lytebyte.com/2009/06/09/how-to-change-double-click-to-single-click-mouse-selection-in-vista-and-windows-7/

Go to My Computer –> Press Alt in the Keyboard and you will see the File and Edit menu. SelectFolder Options from the Tools menu.

Under the General tab, change the Click items as follows from Double-click to open an item (single-click to select) to single-click to open an item (point to select).

You can also change the settings to underline the icon titles always or only when you point at them.

Click Apply and Ok to make the changes. Now you can use single click using mouse to open files and folders in Windows Explorer.