If you're reading this on a computer still running Windows 10, nothing looks different today than it did a year ago. That's exactly what makes this easy to ignore — and exactly why it's worth five minutes of your attention.
What Actually Happened
On October 14, 2025, Microsoft ended free support for Windows 10. The operating system didn't disappear and your computer didn't stop working. What stopped is the stream of free security patches, bug fixes, and official technical support that had been keeping it protected for the past decade.
Every piece of software has vulnerabilities discovered in it over time. Normally, Microsoft patches them. For Windows 10, that no longer happens by default — which means any new vulnerability found from here forward stays open on unprotected machines indefinitely.
Your Three Realistic Options
1. Upgrade to Windows 11
The straightforward fix — if your hardware supports it. Windows 11 requires a TPM 2.0 security chip and a relatively modern processor, which rules out a lot of business PCs bought before roughly 2019–2020. This is the first thing worth checking before deciding anything else.
2. Enroll in Extended Security Updates (ESU)
Microsoft offers a paid bridge program that keeps critical security patches flowing through October 2027 for enrolled devices. It's a reasonable stopgap if you need more runway — for budgeting, for hardware that's mid-lifecycle, or for a handful of machines you're not ready to replace yet. It's worth being clear on what it isn't: ESU covers security patches only. No feature updates, no bug fixes, no general tech support from Microsoft.
3. Replace the hardware
For machines that can't take Windows 11 and are already a few years old, replacement is often cheaper over a 3–4 year horizon than paying for ESU while also nursing aging hardware along. This is usually the right call for anything already showing its age.
Why This Matters More Than It Looks Like It Does
An unpatched machine doesn't announce itself. It keeps working fine, right up until it's the entry point for something you don't find out about for weeks. For a business handling customer data, payment information, or client email, that's not a hypothetical — it's the kind of gap cyber insurance carriers are increasingly asking about directly on renewal questionnaires.
Where to Start
The right move depends on what you're actually running, and that's not something to guess at. A quick inventory answers three things: which machines can upgrade to Windows 11 for free, which need ESU as a bridge, and which are due for replacement anyway. That's the assessment we do first with every client who brings us this question.
Key Takeaways
- Windows 10 still runs fine — it just stopped receiving free security patches as of October 2025.
- Windows 11 needs newer hardware (TPM 2.0), so not every PC can simply upgrade.
- ESU buys time through October 2027 but only covers security patches, not features or support.
- The right plan is different for every machine — start with an inventory, not a guess.
