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Still on Windows 10? October 2026 Is the Deadline That Actually Matters

If your business still has computers running Windows 10, nothing dramatic has happened yet. The machines turn on, email works, and it is easy to assume the whole "end of support" thing was overblown.


Here is the part that has not gotten enough attention: the safety net that has been quietly protecting those machines starts shrinking in October 2026, and the cost of keeping it doubles. With about three months of runway left, this is the right moment for Western North Carolina businesses to make a plan instead of an emergency.


A quick recap of where things stand


Microsoft ended standard support for Windows 10 on October 14, 2025. Since then, Windows 10 machines have kept working, but Microsoft no longer fixes new security holes for free. Businesses that wanted more time could buy into the Extended Security Updates (ESU) program, which delivers critical security patches by annual subscription.


That first ESU year is what runs out in October 2026. From Microsoft directly:


  • Year One of business ESU costs $61 per device, and the price doubles every year after that: roughly $122 for Year Two and $244 for Year Three.

  • The years are cumulative. If you skip Year One and want coverage in Year Two, you pay for both.

  • Three years is the maximum. After October 2028, there is no more runway to buy at any price.

  • ESU only covers security patches. No new features, no fixes for ordinary bugs, no technical support.

  • For home editions of Windows 10, the consumer ESU program ends entirely in October 2026. If your office has a machine running Windows 10 Home, its last security patch is coming this fall.


In other words, the question is no longer "can we stay on Windows 10?" It is "how much are we willing to pay, for how long, to keep aging computers on life support?"


Why this matters even if nothing feels broken


An unsupported computer does not stop working. It stops being defended. Every vulnerability discovered after the patches stop remains open on that machine permanently, and attackers specifically hunt for exactly that.


For a small business, one old machine is rarely just one old machine. It shares the network with everything else. A single unpatched front-desk PC can be the entry point that reaches your file server, your accounting system, or your practice management software.


There are quieter costs too. Compliance frameworks generally expect systems to be patched and supported, so unsupported machines can become audit findings. And many cyber insurance applications now ask directly whether you are running unsupported operating systems. Answering that question the wrong way, or answering it wrong without knowing it, is not a position you want to be in after an incident.


None of this is a reason to panic. It is a reason to plan.


The math usually favors replacement


Here is the simple arithmetic we walk business owners through. Keeping one Windows 10 machine on ESU for the full three years costs about $427 in subscription fees alone. That money buys you no new speed, no new features, and no support. It just keeps an aging computer patched while it gets another three years older.


A planned replacement puts that same money toward a business-class Windows 11 machine that is faster, under warranty, and supported for years to come. Newer machines also tend to reduce the slow drip of lost time your team spends waiting on old hardware, which never shows up on an invoice but is very real.


ESU is not useless. It is a reasonable bridge for a handful of machines that genuinely cannot move yet, like a PC tied to a piece of specialized equipment. It is a poor default strategy for a whole office.


A calm 90-day plan


You do not need to replace everything this month. You need a list, a schedule, and a little lead time. Here is what we recommend between now and October:


1. Inventory what you actually have


Count the Windows 10 machines and note what each one does. In most offices this takes an hour and removes most of the anxiety. Some machines will matter a lot, and some will turn out to be a break-room PC nobody needs.


2. Check which machines can upgrade in place


Some Windows 10 computers meet the hardware requirements for Windows 11 and can be upgraded without buying anything. Machines from roughly 2019 onward often qualify. That is free money on the table if the hardware is otherwise healthy.


3. Phase the replacements


For machines that cannot upgrade, replace them in groups rather than all at once. Spreading purchases over a few months is easier on cash flow, and replacing computers in planned batches means each one arrives pre-configured, cloned from the old machine, and ready to swap with minimal downtime.


4. Use ESU deliberately, not by default


If a specific machine truly cannot move before October, enroll that one machine in ESU as a bridge and put a retirement date on it. A deliberate, short list of covered stragglers is fine. Paying rising subscription fees across a whole fleet is not a plan, it is a postponement.


For dental and medical offices, this is doubly worth planning now. Operatory and front-desk machines need to be swapped around patient schedules, imaging software has to be validated on the new systems, and the calendar between now and October fills up faster than you would think. Asheville Dental IT handles exactly this kind of phased, after-hours replacement work.


Final thoughts


October 2026 is not the day Windows 10 computers stop working. It is the day keeping them safe gets more expensive, and for home editions, the day the safety net disappears entirely. Businesses that plan now get to choose their timing, spread the cost, and skip the emergency.


If you are not sure how many Windows 10 machines you have, which ones can upgrade for free, or what a phased replacement would look like for your office, we would be glad to help you sort it out. Asheville Computer Company helps businesses in Asheville, Arden, Fletcher, Hendersonville, and across Western North Carolina plan computer replacements before they become emergencies.


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