okay sorry last time i did a post I put in lots of information and got told
not to put so much in

The blank contacts are in Contacts / My Contacts / Contacts
I'm not sure how they were created.  I was on holidays and someone else was
using my computer.  I think she created some v-cards would that have caused
these blanks to appear?
Not sure what your next question means but To delete them I click on the
first one to highlight it and then hold shift and cursor until all are
highlighted.  I click delete and nothing happens.  It doesn't ask me to
verifiy deleted items.  My cursor is still blinking so I close Outlook and
reopen it hoping they will have disappeared.  The blank contacts are still
there.
VIrus check is done every morning as soon as I boot up my computer.
I don't know what Add-Ons I have - I have automatic update installed so I
don't even see the updates.