AVGSvc.exe CPU ongoing issues

In the last week or so I have been having issues with AVGSvc.exe using ovre 50% of the CPU.  I have been online and looked through loads of pages with suggestions and nothing seems to be fixing this issue.
Removed AVG, restarted reinstalled, Restarted and still after a short time of using the pc the CPU is half used.  I have just left the pc running after a restart and just left it for ages and then tried to use it and then it just freezes up and 50% is used.  I have both Firefox and Chrome and so far it is happening when I tried to add photos (1 at a time, even) to facebook, sometimes the file dialog box does not open up.  I have closed all programmes and waited for a long while and opened firefox to send this report and the CPU usage of this problem file is now 25%.  I just about to send this and it has now gone to a normal CPU usage.  I would like to try other things to solve this for myself and others also facing this issue.  Please advise what else I can do.  Or if there are logs I can check to find the possible issue.
Thank you