When you open My computer, the common tasks is listed in the left side pane of the My computer Window. But some people find it better if the explorer view was made the default view in the left pane.
To make the explorer view as the default view,
Open the registry editor, Start > Run > regedit.
Navigate to HKEY_CLASSES_ROOT\Folder\shell and in the right pane of the registry editor, set the value of default as explorer.
Note: To set its value, just double click it and in the Edit string resultant dialog, enter the value data as explorer.