Microsoft Servers are more reliable today than they ever have been – Anything Server 2008 R2 and above is reliable as the day is long – but ONLY if they are kept up to date with Security and System patches.  This is a No-Brainer for us and has allowed Barking Dog Communications LLC customers to avoid all of the various SQL Slammer/Melissa/I Love You/Heartbleed craziness that plagues the Fortune 500 – and now, yet another reason to pay attention to patching – it is an actual documented and fined HIPAA violation – Check this out:
$150,000 for not patching their machines – how much would it have cost to patch them?  A tenth of that at most – more likely a hundredth!  That was a very expensive decision.