Hi Maurice Thanks for the link! Crashing? Two types. Overheating, the computer shuts itself off and (sometimes) restarts. You get a DOS alert on the restarts that you've just been shut down due to overheating. I assume this is HP software rather than Windows 7. Second type, BSD. I thought these were linked to a troublesome AVG update in Feb 2012 which had apparently caused a bit of grief. (I changed to 360 from AVG on comparing reviews of AVG 2012 and 360). But, the crashes have kept on going and I looked for something else. Having a BSD occur when I was re-installing MWB (I had returned my laptop to factory settings at the end of June - what fun!) made me research MWB and I came across some forum discussions of exclusion settings being necessary to allow MWB to run happily with other security ware. As to what's running at the time, you have me. I have been keeping a log haphazardly since buying the Dv7 but more rigotrously since 29th June this year. I've been obliged with numerous BSDs but I need the leisure to go through my log and see what was going on around them. Cheers and thanks again ausgumbie