If a few of your office computers still show the familiar Windows 10 start menu, you're not alone. Plenty of businesses kept older PCs running because they "still work fine." But "still works" and "still safe" aren't the same thing anymore.
Quick answer: Not really, unless the PC is covered by Microsoft's paid Extended Security Updates (ESU) program. Microsoft ended support for Windows 10 on October 14, 2025. Your computers will still turn on and run, but devices without ESU no longer receive security fixes, so any new weakness found in Windows 10 stays open for attackers. For a business, the safest path is upgrading eligible PCs to Windows 11, replacing PCs that can't upgrade, and using ESU only as a short-term bridge.
End of support doesn't mean your computer stops working. Nothing shuts off. Your files are still there, and your programs still open.
What it means is that Microsoft stopped providing:
Think of it like a building whose landlord stopped fixing the locks. The doors still open and close. But when someone figures out how to pick a lock, nobody's coming to replace it.
New vulnerabilities get discovered in software all the time. When a PC gets no more security updates, every new flaw found after support ended becomes a permanent opening. Attackers know which systems are no longer patched, and older systems make attractive targets.
It's tempting to think, "It's just the computer at the front desk." But computers on the same network often share files, email, and logins. A single compromised PC can become a doorway to the rest of your business.
Over time, software vendors stop testing on, and eventually stop supporting, Windows 10. New printers, scanners, and line-of-business apps may require Windows 11. You'll start running into "not supported" messages at the worst possible times.
If your business handles sensitive information, such as health, financial, or customer data, running unsupported systems can create problems with compliance requirements. Many cyber insurance applications also ask about how you keep systems patched. It's worth checking your own policy and obligations rather than assuming you're covered.
Waiting usually doesn't save money. Old machines tend to slow down, break more often, and need more support time. And if something goes wrong, the cleanup costs far more than a planned upgrade.
The good news is that you have options. Most businesses end up using a mix of these.
Many computers bought in the last several years can run Windows 11. The upgrade is generally free for eligible Windows 10 PCs. Windows 11 has specific hardware requirements, including a supported processor and TPM 2.0 (a security chip), so not every machine qualifies. Your IT provider can check each device quickly.
Best for: Newer PCs that meet the Windows 11 requirements.
If a computer doesn't meet Windows 11 requirements, replacing it is usually the cleanest answer. A new PC brings Windows 11, better security features, and fewer performance headaches. Replacing devices in planned batches makes the cost easier to budget.
Best for: Older machines, slow machines, and anything already causing problems.
Microsoft offers a paid ESU program for businesses that need more time. According to Microsoft, ESU for organizations was priced at $61 per device for Year One, and the price doubles each year, for a maximum of three years (coverage can run until October 10, 2028). ESU is bought by year, and if you join later, you have to pay for the earlier years too. ESU only provides critical and important security updates. It doesn't add features or include technical support.
Best for: A small number of PCs that run specialty software that isn't ready for Windows 11 yet.
For some roles, a cloud-based desktop (Microsoft offers options like Windows 365 or Azure Virtual Desktop) can be a fit. This can reduce dependence on the local hardware. It isn't right for everyone, but it's worth a conversation if you're replacing lots of devices.
If you're not sure where to start, follow these steps:
Microsoft also offers a consumer version of ESU for personal PCs. But Microsoft says commercial use isn't eligible for the consumer program. If employees use personal computers for work, include them in the conversation. A personal laptop on Windows 10 that logs into company email is still part of your risk.
Not sure how many Windows 10 PCs are still in your office, or which ones can upgrade? PCS can take inventory, build a simple upgrade plan, and handle the work with minimal disruption to your team. Call us at (877) 596-4446 or contact us to get started.
No. End of support does not switch off the computer or remove your files. The concern is the loss of regular updates and support, not whether the PC still starts. Microsoft Support
Regular support for Windows 10 version 22H2 ended on October 14, 2025. Specialized long-term servicing editions have separate support schedules. Microsoft Learn
Eligible business PCs can receive critical and important security updates through commercial ESU. For Windows 10 version 22H2, coverage can run through October 10, 2028. ESU is temporary and does not restore full Windows support. learn.microsoft.com
The upgrade is free for eligible Windows 10 PCs that meet Windows 11 requirements. Hardware replacement, application changes, and IT work may involve separate costs. Microsoft
List every computer, its Windows edition and version, who uses it, and its important software. Then check upgrade eligibility and decide which devices to upgrade, replace, or temporarily cover with ESU.