Many thanks for your very quick reply.  After some fiddling, I achieved my objective ie to search for files on my laptop.  I used your advice to find start settings, show all settings & search box etc.  I selected single column & in the search box tab, selected Access normally.  I also selected single column.  I clicked on ok.  When I clicked on start, the menu now shows 'Search' with a magnifying glass which is what I was after.  Maybe it was there all the time, but I couldn't see it with the way that the start button had been configured. Your advice about search box & explanation of what 'focus' is very useful. 
