Modern Security from Silicon to OS: Why SMBs Should Move Beyond Windows Server 2016

With Windows Server 2016 extended support ending on January 12^th, 2027, Microsoft recommends that organizations upgrade, migrate, or purchase Extended Security Updates for eligible deployments.¹

Customers still running Windows Server 2012 or Windows Server 2012 R2 face an even nearer deadline, with Extended Security Updates ending in October 13^th, 2026.²

For SMBs, this is more than an operating system upgrade. It is an opportunity to modernize security, improve operational resilience, and establish a strong foundation for future growth. Moving to Windows Server 2025 on modern server platforms - such as systems powered by AMD EPYC™ 4005 Series Server CPUs - can help organizations establish a more modern IT foundation.¹

Helping You Secure What Matters Most

Why This Transition Matters
When an operating system reaches end of support, it may continue to run, but it becomes harder to protect and maintain. After standard support ends, newly discovered vulnerabilities may no longer be patched through standard support channels, and unsupported or aging systems can increase operational complexity over time. 

Extended Security Updates may help eligible organizations bridge short-term migration needs, but Microsoft describes ESU as “a last-resort option intended as a temporary bridge” while organizations migrate to newer, supported platforms.³

At the same time, SMBs and independent branch offices face the threats of ransomware, phishing, and credential-based attacks while being expected to maintain uptime, protect data, and support compliance requirements with limited IT resources. As infrastructure ages, meeting these expectations can become more challenging.⁴

A Modern Approach to Security and Performance
Windows Server 2025 introduces built-in security innovations designed to help defend against modern threats. Features such as secured-core server protections, stronger identity security, and expanded encrypted communications help organizations improve their security posture while supporting Microsoft's Zero Trust security approach.^5,6

However, software alone is only part of the solution. Many Windows Server 2025 security features depend on underlying hardware capabilities. Older servers may not fully support these technologies, which can limit the benefits of an operating system upgrade. 

This is why many organizations choose to modernize both hardware and software together. Doing so can simplify management, may improve performance depending on workload and configuration, and help ensure that new security features are fully utilized.

Why AMD EPYC™ 4005 Series Server CPUs can be a Strong Foundation

Modern security from Silicon to OS. Right‑sized performance. A foundation for growth.

AMD EPYC™ 4005 Server CPUs extend the EPYC processor family into entry-level server systems for small business customers and hosted IT services providers. 

Designed for SMB, remote office, branch office, and select edge deployments, AMD EPYC 4005 Server CPU-based systems can offer a practical balance of performance, efficiency, manageability, and platform value. The AMD EPYC™ 4545P Server CPU, for example, is a 16-core processor with a 65W default TDP, which makes it relevant for compact server designs and power-conscious deployments.⁷

Security capabilities such as AMD Infinity Guard and Secure Memory Encryption can help support a layered security strategy.⁸

When deployed in server-class platforms such as the Lenovo ThinkSystem ST45 V3, organizations also benefit from enterprise server platforms designed for business environments.⁹

Taking a Practical Path Forward 

The transition away from Windows Server 2016 is approaching, but it does not need to be disruptive. With proper planning, it can become an opportunity to improve security posture and performance while reducing long-term operational risk. For organizations still using Windows Server 2012, Windows Server 2012 R2, or older platforms, Microsoft states that once products reach end of support, security updates and bulletins end, which can create security or compliance issues and put business applications at risk.¹⁰ That makes now the right time to assess upgrade, migration, or ESU options as part of a broader modernization plan. 

For many SMBs, the best first step is not a hardware quote - it is a readiness conversation. A Microsoft partner or trusted IT provider can help assess application compatibility, licensing, security requirements, backup strategy, and server sizing before building a phased migration plan. 

Take the Next Step

• Talk to a Microsoft Solution Partner about your upgrade strategy¹¹
• Explore the capabilities of Windows Server 2025 
• Evaluate servers powered by AMD EPYC™ 4005 Server CPUs, including Lenovo ThinkSystem systems 

Disclaimers

The information presented herein is for informational purposes only and is subject to change without notice. AMD, Microsoft, and Lenovo products and features may vary by system configuration. Security features are designed to help reduce risk, but no system is completely secure. 

AMD Infinity Guard features vary by EPYC™ Processor generations and/or series. Infinity Guard security features must be enabled by server OEMs and/or Cloud Service Providers to operate. Check with your OEM or provider to confirm support of these features. Learn more about Infinity Guard at https://www.amd.com/en/technologies/infinity-guard. GD-183A. 

References

1.  Windows Server 2016 - Microsoft Lifecycle | Microsoft Learn 
2. Windows Server 2012 - Microsoft Lifecycle | Microsoft Learn 
3. Product Lifecycle FAQ - Extended Security Updates | Microsoft Learn 
4. SMBCybersecurity-Report-Final.pdf  
5. What's new in Windows Server 2025 | Microsoft Learn 
6. Zero Trust as a security foundation | Microsoft Learn 
7. AMD EPYC™ 4005 Processors  
8. Infinity Guard  
9. AMD EPYC™ 4005 Processors  
10. ThinkSystem ST45 V3 | Lenovo US  
11. Find a Microsoft partner