Windows Server 2016
End of Extended Support:
Jan. 12, 2027

Continuing to run Windows Server 2016 after support ends introduces immediate and compounding risk.

Without ongoing updates or support, your environment will face:

• Unpatched vulnerabilities that attackers actively exploit

• Increased ransomware and cyberattack exposure

• Compliance failures for frameworks requiring supported systems

• Application and vendor compatibility issues

• Higher operational and recovery costs

Because no new security patches will be released, any newly discovered vulnerability will remain permanently exposed. Source: ComputingTech

Sourcepass Recommendation:

Do not treat “it still works” as a safe operating strategy. Sourcepass helps clients prioritize servers by risk and business impact, ensuring the most critical systems are addressed first as part of a phased migration plan.

Microsoft offers Extended Security Updates (ESU) as a paid, temporary option for organizations that need additional time. 

However, ESU comes with important limitations:

• It only provides critical security updates—no new features or improvements

• It is time-limited (typically up to 3 years)

• Costs increase over time

• It does not eliminate long-term risk or technical debt

ESU should be viewed as a short-term bridge—not a long-term strategy.

Sourcepass Recommendation:

Use ESU only if necessary to support business continuity during a migration. Sourcepass works with clients to minimize ESU reliance by aligning timelines, accelerating critical workloads first, and building a realistic transition roadmap.

The right path depends on your unique environment, business goals, and application dependencies. Most organizations choose one of the following approaches:

• Upgrade to a newer version of Windows Server: Best for businesses maintaining on-premises infrastructure

• Migrate to the cloud (Azure or multi-cloud): Ideal for scalability, flexibility, and reduced infrastructure overhead

Each option requires careful planning to ensure:

• Application compatibility

• Data integrity

• Minimal downtime during transition

Sourcepass Recommendation:

There is no one-size-fits-all answer. Sourcepass takes a consultative, environment-first approach, helping you:

• Map all server dependencies

• Evaluate cost vs. risk across options

• Build a phased, business-aligned migration strategy

The first step is gaining a clear understanding of your current environment—what’s running, what’s at risk, and what needs to change.

Sourcepass Recommended Next Steps:

1. Identify all servers running Windows Server 2016

2. Map critical applications and dependencies

3. Assess security and compliance exposure

4. Define your future-state architecture (on-prem, cloud, hybrid)

5. Build a phased migration roadmap

Schedule a Risk Assessment with Sourcepass to get a clear, actionable plan tailored to your environment.