norton utilities 14.5 failure to open

only once i can open and use utilities 14.5 and clean up.  if i need to use it again it never opens the 2nd time. i click on it on my desktop and it will not open. i go in to task manger and see it there and select process and then end process so i can select it again on desktop but it wiill not let me end process. it keeps saying "the operation could not be completed
access is denied". i am the administrator and i have all the right but i cannot end it or restart utilities unless i have to restart my desktop.

i have a hp desktop on windows 7 (custom install not upgraded) but this also happens on my partners new samsung laptop that came with windows 7 installed and also my son's hp laptop with windows vista on it.

i have tried doing the following (http://www.symantec.com/norton/support/kb/web_view.jsp?wv_type=public_web&docurl=20090407170301EN)  but i still get the same.

any ideas? i am fed up of rebooting.

 

thanks

Message Edited by jduk on 11-08-2009 02:58 AM