Thanks for both of your replies, the option to disable the anti-virus seems a good workaround.
However, I've tried to re-install AVG FREE 2014 but alas I can't get it installed the whole PC crashes with a blue screen and white writing 'IRQL_NOT_LESS_OR_EQUAL'. Midway through the installation process.
I restart the PC run the AVG2014 uninstaller, try again to re-install and crashes again.
I've given up on AVG for now, and started to use a competitors product. I used to love AVG but this is just a nightmare.