A few weeks before the blue screen I did remove some spyware & virus my software caught (I assume it caught it all) and also removed some toolbars I did not know were installed.
OK just a warning that this may malware related but I'm going to try a few things first. Do not start Avast till the other ones are disabled or uninstalled. Just download it and then do the other two.
Disable them or uninstall them. Before doing this please do the following so we are safe.Most of them refered to either windows defender or my anti virus software Sophos.
Please download Avast from my signature below. Please make sure you do the registration as it is good for a year or more. When it is due simply just reregister it.
Avast in my opinion is better because:
It's FREE to the Home User
It Updates it's Definitions daily
You can scan Individual Files, Folders and Drives
No buying new versions every year
http://www.avast.com...avast-home.html