There is very little variation in this dialog box from one version to another unless you have a special keyboard with extra buttons for web access, volume controls, etc. The settings in Fig 5 represent the default settings on an unchanged Windows installation. Change the settings by dragging the slider left or right and test in the white box. To test, click your mouse in the box to set the cursor, then hold down a key on the keyboard. Revise the setting and test the new setting.
Backspace works also as a test.
No need to delete and start over.