Today I started my PC and NOD32 came up with an error, "Application protocols scan is non-functional" and the Taskbar icon is red. Does anybody know how to rectify this problem? See pics below: http://i.imgur.com/9QAUR.jpg http://i.imgur.com/y1ZA7.jpg Update No. 1: I tried a Repair of NOD32 and it failed, so I uninstalled NOD32 and tried to re-install it, it too failed. I then downloaded the latest version tried to install that and it failed too. I then did a System Restore back to 01-05-2012 and it too has failed with the same error. I am no closer to resolving this issue. Update No. 2: Problem has been solved! I ran Combofix.exe and it removed the following 2 x files ........ c:\users\xxxxxx\AppData\Local\assembly\tmp c:\users\xxxxxx\AppData\Roaming\vso_ts_preview.xml and NOD32 is back running perfectly. That was the first glitch I have ever had running NOD32 in all the years I have been using it, bugger, ruined my perfect record.