I suggest some reading: * http://www.telegraph.co.uk/technology/microsoft/7898033/Microsoft-loses-NHS-contract.html http://www.telegraph.co.uk/technology/micro

I suggest some reading: * http://www.telegraph.co.uk/technology/microsoft/7898033/Microsoft-loses-NHS-contract.html http://www.telegraph.co.uk/technology/microsoft/7898033/Micr... * https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/213823/dh_117794.pdf#page=47 https://www.gov.uk/government/uploads/system/uploads/attachm... * http://www.bbc.co.uk/news/uk-politics-24130684 http://www.bbc.co.uk/news/uk-politics-24130684 * https://www.theguardian.com/society/2013/sep/18/nhs-records-system-10bn https://www.theguardian.com/society/2013/sep/18/nhs-records-... * https://blog.venngroup.com/august-1st-marked-the-launch-of-microsofts-latest-operating-system-windows-10/ https://blog.venngroup.com/august-1st-marked-the-launch-of-m... * https://www.gov.uk/government/publications/nhs-foundation-trusts-letter-on-support-for-windows-xp-and-office-2003 https://www.gov.uk/government/publications/nhs-foundation-tr... * https://www.theguardian.com/technology/2010/jan/22/internet-explorer-nhs-vulnerability https://www.theguardian.com/technology/2010/jan/22/internet-... * http://www.cio.co.uk/it-applications/uks-largest-nhs-trust-ditches-laptops-in-favour-of-windows-go-3436704/ http://www.cio.co.uk/it-applications/uks-largest-nhs-trust-d... Yes, this is a large and complex subject.