If there are more items in Start-Program menu than can be shown in a single screen, then windows has
to do either scrolling or cascading effect to display rest of the items. You can tell Windows what to do
by doing this:
In regedit, navigate to
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced] and
look for key "StartMenuScrollPrograms". You may not find it there if this is your first time. In this
case, create a new STRING key "StartMenuScrollPrograms" and set its value to "YES" to enable
scrolling or "NO" for the cascading effect.