Positive Psychology 1 suggests that every one of us has the potential to increase our psychological wellbeing, while Positive Computing endeavours to develop technologies to support wellbeing and human potential. One such technology, Computerised Cognitive Behavioural Therapy (CCBT), has been found to be effective in increasing wellbeing for individuals with diagnosed mental health conditions. However, its ability to improve wellbeing in people without pre-existing mental health conditions is less well understood. To explore use in this population, an 8-week long user trial of a CCBT programme was conducted. Results provided insight into CCBT's ability to; increase subjective wellbeing; increase empathy for individuals who do experience mental health conditions; enhance selfreflection; increase positive behaviour change; and increase motivation to action. In lieu of perpetually creating new health technologies, we suggest a design approach which explores the extension and repurposing of existing evidence-based technologies to support and enhance the wellbeing of previously unintended populations. We found CCBT to be a tool which could contribute to the wellbeing of wider society from a preventative, proactive and positive perspective.