This is a very difficult question to answer without more information on your systems and business context. Overall, for Windows machines, I would recommend ESET NOD32, which you can find out more about at http://www.eset.co.uk/
The National Cyber Skills Centre is trusted by hundreds of companies nationwide in providing cutting edge, accredited courses for their staff.
I attended the Cyber Essentials course and found it extremely useful. Working in a small business can sometimes mean that you are accountable for disparate areas. Cyber security can feel quite daunting. However the course was pitched at a level that ensured I was able to benefit from within my own business. With lots of useful examples and exercises I feel confident that I am able to apply the necessary changes within our Business to become more cyber secure.
Laura, Fresh Nous
If you were in any doubt of the need to manage 'cyber security' as a general business issue, or think that it is the sole responsibility for your IT team to look after all things technical, then this course will quickly remove that uncertainty and help you to identify some solutions to protect your business, your reputation and your Client base. A ‘must do’ course and business certification, delivered in plain English without technobabble, by a professional team who understand the pressures and challenges that SME owners face.
We can’t say enough about the value of the Step-by-Step Cyber Essentials Course. Filling out the application was clearly explained, along with the best wording, whilst grey areas that could have caused a headache going backwards and forwards were explained in minutes. Thoroughly recommended, and worth the time.