A juggernaut like the NHS won’t find it easy to drop Windows for open source - but it should
Microsoft is a commercial venture so it is reasonable for them to sell their products, which they do via licensing per unit. The NHS has about 100,000 computers, so it pays a considerable amount and also has a lot of work to do each time there’s a required update for any of their server technologies or desktop computers. While it needs some technical tweaking, Windows is sold as something that comes out of the box and should work. Designed to work with a wide range of different types of systems, the one size that fits (almost) all computers is a bonus for many technical managers.
But it hasn’t been problem-free. Most hospitals still have thousands of PCs running Windows XP which stopped being supported earlier this year.