Hi, I have been using Hijackthis for a few years, I have a good idea of what is supicious, unwanted and what not to delete. I recently upgraded from XP to Win7 - I have attached my log file from a HJT 2.0.2 scan. I don't seem to be able to delete any entries though using Win7. For example if you see the 3rd and 4th entries in my log file: R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = I don't think these are of any concern but I cannot delete them. Further down towards the end of the list I see some entries which are causingf some concern as they have "(missing file)" listed alongside the entry. Again I can't delete these, or I can but they return upon the next scan: O23 - Service: @%Systemroot%\system32\wbem\wmiapsrv.exe,-110 (wmiApSrv) - Unknown owner - C:\Windows\system32\wbem\WmiApSrv.exe (file missing) Any help or advice would be greatly appreciated. Thanks in advancve, Rob.