Thanks for your reply and so quickly too.
I disconnected from the net, completely uninstalled Avira using Revo Uninstaller, rebooted, and only then installed Avast 2014 from the download on my desktop.
No, I have not tried the Beta version, why would I when Avast 2014 did not warn me it had an issue with Windows XP.
I was not aware of an Avast uninstall utility having used Avast Free for years with no issues. I always uninstall with Revo or IObit uninstaller - have never had a problem with either.
I will update the forum when my IT Technician rings me with the result of his fix. This will most likely be tomorrow Saturday here in OZ....
What version of Avast is safe for my old Laptop that has suffered downloading and installing Avast 2014?
best regards,