I used Malwarebytes Anti-Malware..
Rebooted in safe mode (with networking), installed (and subsequently updated MBAM), ran a quick scan which found 2 probs, fixed them, rebooted normally... job jobbed.
Also installed Spybot S&D (which found no threats despite the laptop not being 'cleaned' for over a year) and CCleaner (cleared up LOADS of registry issues)..
Oh.. and Chrome.
Her McAfee subscription expires at the end of the year.. I'll install AVG then.