Is Windows 10 Still OK in a Dental Office in 2026?

The front desk PC still boots every morning, the schedule still loads, and nobody has seen an error. Then the imaging vendor says it won't install the new version on that machine, or the cyber insurance renewal asks how many computers run an unsupported operating system, and someone in the office asks the obvious questions: will Windows 10 stop working, and is it actually still OK here?

This guide sorts every computer in a dental office into keep, cover, isolate or replace. It gives Microsoft's ESU prices for year two in Microsoft's own words, what Dentrix, Open Dental, Eaglesoft and scanner makers say about Windows 10 today, a PC-by-PC table, and a checklist for the machines that have to stay behind. When you are ready to replace hardware, our page on workstation and server upgrades for dental offices covers that side. Every date below was checked at the vendor's or Microsoft's own page on 30 October 2026; the next check is 12 January 2027, the last day of Windows Server 2016 support.

Will Windows 10 stop working?

No. Windows 10 computers keep working after end of support; Microsoft says so in plain terms. What stopped on 14 October 2025 is technical support, feature updates and quality updates, which include security fixes. A Windows 10 PC that is not enrolled in Extended Security Updates gets no new protection against newly found flaws.

Microsoft's own wording, on its Windows 10 Extended Security Updates page, is that "Windows 10 PCs will continue to work". The same page lists what ended on 14 October 2025 for versions that reached end of support that day:

• • technical support;
• • feature updates or new features;
• • quality updates, "including security and reliability fixes".

Version 22H2 was the last version of Windows 10. One exception matters in dental offices: Microsoft's Windows 10 Home and Pro lifecycle page notes that existing LTSC releases (Long-Term Servicing Channel, a locked-down edition some equipment makers install on device PCs) "will continue to receive updates beyond that date based on their specific lifecycles". If an imaging or scanner PC came from the vendor, check which edition it runs before you decide anything about it.

In practice, "still works" and "still OK" are different questions. A PC that runs fine but gets no fixes is a PC whose risk grows every month a new Windows flaw is published. For a front-desk machine that opens email, browses insurance portals and holds the practice software, that is the wrong place to carry risk. For a capture PC that does one job and never touches the internet, the answer can be different, and the rest of this guide shows how to tell them apart.

What do Windows 10 Extended Security Updates cost a dental practice?

Microsoft sells Windows 10 Extended Security Updates (ESU) to organizations through Volume Licensing at $61 per device for year one. The price doubles every consecutive year, for a maximum of three years. ESU is bought by whole year, and it is cumulative: a practice that enrolls in year two pays for year one too. Devices must run Windows 10, version 22H2.

ESU is a paid subscription that sends critical and important Windows security updates to an enrolled Windows 10 PC after end of support. It does not bring new features, non-security fixes or general technical support. Microsoft's FAQ adds that the minimum purchase is one license, that partial periods such as six months are not sold, and that year one started in November 2025.

The table below applies Microsoft's published rule ("$61 USD per device for Year One… The price doubles every consecutive year") to a practice enrolling in year two, which begins in November 2026. These are Microsoft list prices as published; your licensing reseller's quote is the number to budget.

A worked example: four imaging PCs that cannot move to Windows 11 yet cost 4 × ($61 + $122) = $732 at list price to cover through year two. Compare that with the price of replacing the same four PCs. If the hardware is old enough that it would be replaced within a year anyway, ESU often costs more than it saves. If the PC is tied to an expensive device that has no Windows 11 path, ESU buys time.

Is there a cheaper consumer ESU?

Microsoft does run a separate consumer ESU program: free if the PC syncs its settings to a Microsoft account, 1,000 Microsoft Rewards points, or a one-time $30 purchase, with updates through 12 October 2027. Microsoft's consumer page also states that "the consumer ESU program can't be used in commercial scenarios", and enrollment isn't offered for PCs joined to an Active Directory domain or Microsoft Entra, or enrolled in device management. A dental practice's PCs are business computers, so plan on the organization program and ask your licensing reseller if a case is unclear.

One more option exists for some practices: Microsoft includes ESU at no extra cost for Windows 10 virtual machines in Windows 365 and Azure Virtual Desktop. That is a cloud-desktop decision with its own costs and is only worth weighing if you were already considering cloud desktops; for most offices, the question is still which physical PCs to upgrade first. Our guide to budgeting the Windows 10 transition covers the spreadsheet side.

Does your dental software still support Windows 10?

Not for new work. Henry Schein One stopped supporting Dentrix installs on Windows 10 after 30 June 2026, and Open Dental lists Windows 10 among its formerly supported systems, with support suspended on 14 October 2025. Imaging and scanner makers vary by device. Check each vendor's current document before you plan, not a blog's summary of it.

The table records what each vendor's own document said when we read it on 30 October 2026.

Dentrix and Windows 10 after June 2026

Read the Henry Schein One sentence in the Dentrix System Requirements 2026 closely: it is about installing. The same April 2026 document still lists "Windows 10 and 11" for workstations, and it does not say an existing Dentrix workstation stops working on 1 July 2026. Some summaries online say Dentrix dropped Windows 10 entirely. The document doesn't say that. What it does mean is practical: if a Windows 10 workstation fails, or you add a chair, the new or rebuilt machine should be Windows 11, because that is what Henry Schein One supports installing on. The same document also asks for "a current Microsoft-supported version of Microsoft Word" for letters and labels, which matters for the patch section below. If Dentrix is your practice software, our Dentrix IT support page covers how we look after the workstations and server around it, and our Dentrix vs Open Dental comparison for IT explains how the two differ on servers and workstations.

Open Dental and Windows 10

Open Dental's computer requirements page lists the supported systems in one list for workstations and servers, and Windows 10 is no longer on it. It sits under "formerly supported", with support suspended on 14 October 2025, the same day Microsoft ended support. Open Dental also says that if you are buying new equipment, it recommends "the newest version of the Windows operating system". Our Open Dental IT support page covers the workstation and server side.

Eaglesoft and Windows 10

We could not read Patterson's current Eaglesoft requirements document on 30 October 2026, so this guide makes no claim about Eaglesoft and Windows 10 or 11. Before you upgrade a workstation or the server, ask Patterson for the requirements that match your exact Eaglesoft version, and check them against the Windows version you plan to install. Our Eaglesoft IT support page covers the IT side.

Imaging PCs and intraoral scanners

Device PCs are where most offices get stuck. A sensor, pano, CBCT or scanner often depends on a driver or capture program built for one Windows version, and the device maker, not the PMS vendor, decides when it moves. 3Shape's own support article on Windows 10 end of life is a clear example: TRIOS MOVE and TRIOS 3 carts are "not eligible to a Windows 11 upgrade", while 3Shape says TRIOS systems keep working after Windows 10 end of support. For a practice-owned laptop used with a scanner, 3Shape suggests running Microsoft's PC Health Check first and, if the laptop is not eligible, ESU. For the full list of what each platform needs, see our guide to dental software system requirements; for DEXIS sensors specifically, see DEXIS IT support.

Which PCs in a dental office can stay on Windows 10?

Almost none of the PCs staff use every day. Front-desk, operatory and doctor's PCs open email, websites and the practice software, so they should move to Windows 11 or be replaced. A single-purpose imaging or scanner PC that its maker can't upgrade may stay on Windows 10 for a while, enrolled in ESU and isolated from the rest of the network.

Start by sorting each machine with the table. "Upgrade" means the PC meets Microsoft's Windows 11 requirements: a compatible 64-bit processor with 2 or more cores at 1 GHz or faster, 4 GB of RAM, 64 GB of storage, UEFI firmware that is Secure Boot capable, and TPM 2.0. Microsoft's PC Health Check app checks most of this on a Windows 10 PC, though Microsoft notes it does not check the graphics card or display. Practice software asks for more: Dentrix, for example, lists 8 GB of RAM as the workstation minimum and 16 GB as recommended.

Two lines in that table deserve a closer look.

The server. The machine that holds your practice database usually runs Windows Server, not Windows 10, so the Windows 10 date does not apply to it. Microsoft's Windows Server 2016 lifecycle page shows extended support ending on 12 January 2027 (Pacific time), the same date Henry Schein One prints in the Dentrix requirements. If your server runs 2016, that date is weeks away, not months. Our comparison of dental server replacement vs cloud migration covers both routes.

The device PCs. These are the reason a "replace everything" plan stalls. The rule of thumb is to keep the device working and shrink what it can reach, rather than force an upgrade the device maker doesn't support. When the hardware does need to change, plan it as one project with a date for every device PC, rather than replacing machines one at a time after each failure.

How do you protect a PC that has to stay on Windows 10?

Enroll it in ESU, give it one job, and fence it off. A Windows 10 imaging or scanner PC should sit on its own network segment, never open email or browse the web, have no extra remote-access tools, and be in the backup. Write down why it stays, who approved it, and the date you will look again.

Isolation means limiting what a PC can talk to and what can talk to it, so that a flaw on that machine can't spread to the rest of the office. On a dental network that usually means a separate VLAN (a virtual network segment set up in the switch and firewall) for device PCs, with only the traffic the imaging software needs allowed through. Our page on dental office network design explains how those segments are set up.

The written exception is the step most offices skip. It is also the one that answers an insurer's questionnaire or an auditor's question in a single page. Our guide to dental IT patch management shows how to keep exceptions in the same log as your regular update schedule, and our dental backup and disaster recovery checklist covers the restore test.

Can Windows 11 updates break dental software too?

Yes. Moving to Windows 11 does not end update problems; it changes them. Microsoft's June 2026 update KB5094126 could stop Office apps from opening from some third-party programs, and Microsoft named Dentrix and SoftDent among them. Later updates fixed it. A tested update routine protects you on either version.

Here is what happened, from Microsoft's own support article for the 9 June 2026 update (KB5094126). After installing it, some third-party applications that use OLE automation (the way one program asks Word or Excel to open a document for it) could fail to open Word, Excel, PowerPoint or Access, sometimes without any error message. Microsoft listed dental software such as Dentrix and Softdent among the reported examples. For an office that prints letters from the practice software, that meant letters quietly stopped opening. Microsoft marked the issue resolved in updates released on or after 14 July 2026, giving KB5101650 as an example.

There is a second, quieter date for offices that have already upgraded. Microsoft's Windows 11 24H2 release health page says that as of 13 October 2026, Windows 11 version 24H2 Home and Pro editions "have reached end of updates", and recommends moving to version 25H2 or 26H2. A Windows 11 Home or Pro PC still on version 24H2 is now in the same position as an unenrolled Windows 10 PC: running, but without monthly security updates.

If imaging stops talking to the practice software after an update, our guide on when imaging stops talking to the PMS walks through who to call and in what order. The full monthly method is in our patch management guide for dental offices.

What is the right order for a Windows 10 exit?

Inventory first, then decide, then budget, then upgrade, then document. Each step below hands off to a guide that covers it in depth, so this page stays the place you come back to for the yes-or-no rule and the dates.

For the steps in detail: our 7-step guide to Windows 10 end of life for dental practices is the full checklist, upgrading from Windows 10 with zero downtime covers the after-hours method, and budgeting the Windows 10 transition covers the numbers.

What to ask your IT provider about Windows 10 PCs

Use these questions to check that your provider has a plan for every machine, not only the ones it already manages. A good answer names the PC, the date and the person responsible.

How Legend Networking can help

Legend Networking works on the IT side of dental offices: the computers, servers, network and backups around the dental software. Legend has 22+ years in dental IT (since 2004) and has served over 3,500 practices since 2004. Ian Lynch has 22 years in dental IT and oversees the NOC, onsite dispatch and client technology roadmaps.

• • We support the IT environment for Dentrix, Eaglesoft, Open Dental and Archy, and for imaging from DEXIS, Vatech, Carestream, Planmeca/Romexis and Dolphin Imaging.
• • In-house engineers; no outsourced first-level triage.
• • 24/7 monitoring.
• • Onsite dispatch by appointment across served dental markets; remote-first nationwide.
• • A 4.8 rating from 173 Google reviews.