Hi Boggin
Thank you for your quick response.
I've tried to run a scan with ESET but, unfortunately, Windows blocks the software as it can't verify the publisher!
I was in safe mode and accepted the active x but couldn't get any further. Other software I've been able to download and run, such as yours, malwarebytes, hitman, Kaspersky TDSSKiller, AdWCleaner.
CMD