Hello
Extended Security Updates (ESUs) for Windows Server 2012 are not automatically received; they are a purchasable option for customers who need to run certain legacy Microsoft products past the end of support. ESUs include critical and/or important security updates for a maximum of three years after the product's end of extended support date. They are available for free for workloads moved to Azure Virtual Machines, but for on-premises or hosted environments, customers with Software Assurance can purchase ESUs. It's important to note that ESUs do not include new features, customer-requested non-security hotfixes, or design change requests.
Regarding the risks associated with running older versions of Windows Server 2012, there are several to consider:
Security vulnerabilities: Without regular updates, systems become susceptible to new threats and exploits.
Compliance issues: Running unsupported software can lead to non-compliance with industry regulations, potentially resulting in fines.
Operational risks: Any issues that arise post-EOL may impact operations due to the lack of support from Microsoft.
Limited compatibility: Newer applications may not function correctly on outdated server OS, leading to performance and reliability issues.
Decreased performance and reliability: Over time, the outdated server may not perform optimally, affecting business operations.
To mitigate these risks, it is recommended to migrate to a newer version of Windows Server or to purchase ESUs if immediate migration is not feasible.