Windows 10 End of Life: What Florida Businesses Need to Do Before October 2025

Microsoft will end support for Windows 10 on October 14, 2025. After that date, Microsoft will no longer release security patches, bug fixes, or technical support for the operating system. Any computer still running Windows 10 after that date will continue to work — but every new vulnerability discovered after that date will remain unpatched, permanently.

For businesses, this is not a theoretical risk. Unpatched operating systems are one of the most common entry points for ransomware and other cyberattacks. The pattern is well-documented: when Microsoft ended support for Windows 7 in January 2020, attacks targeting Windows 7 systems increased significantly in the months that followed. The same will happen with Windows 10.

If your business has computers still running Windows 10, here is what you need to know and do.

How Many Computers Are We Talking About?

Windows 10 is still the most widely used version of Windows in the world. As of mid-2026, a significant portion of business computers — particularly in small and mid-sized businesses — are still running it. Many of these computers are not running Windows 10 because the business made a deliberate choice to stay on it. They are running it because nobody got around to upgrading.

The first step is knowing exactly what you have. If you do not have a current inventory of your computers and their operating system versions, that is the starting point. A managed IT provider can generate this report in minutes from their remote monitoring tools. If you are managing IT yourself, the System Information tool in Windows will show you the OS version on each machine.

Can Your Computers Run Windows 11?

Windows 11 has stricter hardware requirements than Windows 10. The most significant requirement is TPM 2.0 — a security chip that most computers manufactured after 2017 have, but older machines may not. Windows 11 also requires a 64-bit processor, 4 GB of RAM, and 64 GB of storage.

Microsoft provides a free tool called PC Health Check that will tell you whether a specific computer meets Windows 11 requirements. Run it on every computer in your environment before planning your upgrade path.

The results typically fall into three categories:

• Compatible: The computer meets all Windows 11 requirements and can be upgraded in place. This is the simplest path.
• Compatible with a BIOS change: The computer has TPM 2.0 but it is disabled in the BIOS. Enabling it and then upgrading is straightforward but requires a technician visit or remote BIOS access.
• Not compatible: The computer is too old to run Windows 11. It needs to be replaced.

The Hardware Refresh Question

For computers that cannot run Windows 11, the end-of-life deadline is effectively a forced hardware refresh. This is not necessarily bad news — it is an opportunity to replace aging equipment that was probably due for replacement anyway.

The average business computer has a useful life of four to five years. A computer that cannot run Windows 11 is likely at least seven or eight years old. Beyond the operating system issue, older hardware is slower, more prone to failure, and less energy-efficient than current equipment.

When planning a hardware refresh, consider:

• Timing: Do not wait until October 2025 to start. Hardware procurement, imaging, data migration, and deployment take time — especially if you have multiple locations or a large number of machines. Start the planning process now.
• Standardization: A hardware refresh is a good opportunity to standardize on a smaller number of models, which simplifies support and spare parts management.
• Leasing vs. buying: Some businesses prefer to lease computers on a three-year cycle rather than buying, which spreads the cost and ensures regular refresh cycles without large capital expenditures.

Extended Security Updates: A Temporary Option

Microsoft is offering Extended Security Updates (ESU) for Windows 10 — paid security patches that extend support beyond the October 2025 deadline. This is the same program Microsoft offered for Windows 7 after its end-of-life date.

ESU pricing for Windows 10 has not been finalized as of this writing, but based on the Windows 7 ESU program, expect costs to increase each year and to be significant for businesses with many machines.

ESU is a bridge, not a solution. It buys time for businesses that cannot complete their migration before the deadline, but it does not eliminate the need to upgrade. If you are considering ESU, use the time it buys to complete your hardware assessment and migration plan — not to defer the decision indefinitely.

The Upgrade Process: What to Expect

For computers that are compatible with Windows 11, the upgrade process is straightforward but requires planning:

1. Verify application compatibility. Most modern business applications run fine on Windows 11, but older or specialized software may have compatibility issues. Test critical applications before rolling out the upgrade broadly.
2. Back up before upgrading. In-place upgrades from Windows 10 to Windows 11 are generally reliable, but hardware failures and unexpected issues do happen. Ensure every machine has a current backup before the upgrade begins.
3. Plan for user disruption. The Windows 11 interface is different enough from Windows 10 that some employees will need time to adjust. The Start menu, taskbar, and Settings app have all changed. Brief user training or documentation reduces support calls after the upgrade.
4. Stage the rollout. Upgrade a small group of non-critical machines first, confirm everything works, then roll out to the rest of the organization. Do not upgrade everyone simultaneously.

What Happens If You Do Nothing

Businesses that are still running Windows 10 after October 2025 without ESU coverage will be running an unpatched operating system. Every vulnerability discovered after that date will remain exploitable indefinitely on those machines.

Cyber insurers are paying attention to this. Some carriers are already asking about end-of-life operating systems in their underwriting questionnaires. Running unsupported software is increasingly treated as a material risk that can affect coverage eligibility or claims outcomes.

The practical risk is straightforward: attackers will target Windows 10 vulnerabilities specifically after the end-of-life date, knowing that a significant portion of the installed base will never be patched. The businesses that get hit will be the ones that did not plan ahead.

Getting Started

The right first step is a complete inventory of your computers and their Windows versions. From there, you can assess which machines are upgrade-compatible, which need to be replaced, and what the timeline and cost look like for your specific environment.

BlueStream Consulting helps businesses across Central Florida plan and execute Windows upgrades and hardware refreshes. We can assess your environment, manage the upgrade process, and ensure your team is up and running on Windows 11 before the October 2025 deadline. Call us at 352-432-4200 or reach out through our contact page to get started.