Millions of PCs still run Windows 10 despite the upgrade push. The reasons are hardware requirements, workflow habits and cost — and there are practical options besides upgrading immediately.
Key takeaways
- Windows 10’s persistence is driven less by user stubbornness than by hardware eligibility rules that exclude many otherwise functional PCs from a free upgrade to Windows 11.
- Microsoft has published system requirements for Windows 11 that include a compatible processor generation, UEFI with Secure Boot and a TPM 2.0 security module, which older machines frequently lack.
- Running an operating system past its official support date means no further security updates by default, which is the central risk for anyone choosing to stay put.
- Extended security update programmes have historically given consumers and organisations a paid or conditional way to keep receiving patches for a limited period after mainstream support ends.
- The practical choice for most holdouts comes down to four options: upgrade in place, buy new hardware, pay for extended updates, or move the machine to a different operating system.
What is actually happening with Windows 10 and Windows 11?
Windows 11 was released as the successor to Windows 10, and Microsoft has offered a free upgrade path to eligible devices ever since. Despite that, a large share of Windows PCs in active use has continued to run Windows 10 well past the point at which the newer version became widely available. Adoption of Windows 11 has grown, but not at the pace that earlier Windows transitions might have suggested.
The gap is visible in third-party measurements of desktop operating system usage, which are estimates rather than authoritative counts. The precise split between the two versions at any given moment is not something that can be stated with confidence, because the main public figures come from web analytics samples and vendor telemetry that are not directly comparable. What is consistent across those sources is the direction: Windows 10 has declined more slowly than a straightforward upgrade campaign would predict.
Why is this being discussed now?
Two things keep the topic active. The first is the approach and passing of end-of-support milestones for Windows 10, which change the security calculus for anyone still running it. When a Windows version reaches end of support, Microsoft stops shipping routine security updates for it, and the machine keeps working but stops being patched against newly discovered vulnerabilities.
The second is the visibility of the upgrade prompts themselves. Users have reported full-screen notifications, reminders and in-product messaging encouraging the move to Windows 11 or to a new PC. Those prompts generate recurring discussion on forums and social platforms, which is where this trend surfaced. The discussion is less about a single event and more about a slow-moving standoff between a vendor’s release cadence and an installed base that does not see a reason to move.
What background does a newcomer need?
Windows upgrades used to be limited mainly by whether a machine had enough memory and disk space. Windows 11 changed that by adding requirements tied to platform security. The published requirements include a TPM 2.0 module, UEFI firmware with Secure Boot capability, and a processor from an approved list of generations. A computer can be fast, well-maintained and entirely adequate for its owner’s work while still failing one of those checks.
TPM stands for Trusted Platform Module: a chip or firmware feature that stores encryption keys and verifies that the system booted an untampered operating system. Secure Boot is a firmware feature that refuses to load boot code that is not signed by a trusted authority. Both are defensive measures, and both are the reason a machine that runs Windows 10 comfortably may be ineligible for Windows 11.
There is a further wrinkle: some machines have the required hardware but ship with it disabled in firmware. In those cases the PC reports as ineligible until TPM and Secure Boot are switched on in the BIOS or UEFI settings, at which point it may pass. This is a common source of false negatives when people check upgrade eligibility.
Who is affected, and how?
Home users with a desktop or laptop bought before the requirements were introduced are the largest group. For them the practical question is whether their machine qualifies. Microsoft provides a PC Health Check tool that reports eligibility and, when a device fails, indicates which requirement was not met.
Small businesses face the same question multiplied across a fleet, plus the cost of replacing hardware that is not otherwise failing. Larger organisations tend to have volume licensing and management tooling that smooths the transition, and often plan refresh cycles years in advance.
A distinct group is affected by software rather than hardware: users running specialised applications, older peripherals with no updated drivers, or industrial and medical equipment tied to a specific Windows build. For them, upgrading is not a matter of preference but of whether a vendor has certified the newer platform at all. Where that certification does not exist, the machine stays where it is regardless of eligibility.
Where do informed people disagree?
The main disagreement is over whether the hardware requirements are proportionate. One view holds that mandating TPM 2.0 and Secure Boot raises the security floor for the entire ecosystem, and that a clean break is the only way to make those protections universal rather than optional. The counter-view is that the rules stranded a large quantity of serviceable hardware and pushed users towards replacement purchases, with environmental and financial costs that were avoidable.
A second disagreement concerns unsupported installations. It is technically possible to install Windows 11 on hardware that does not meet the requirements using documented registry changes or third-party installation tools. Whether that is sensible is contested: it works for many people, but Microsoft has stated that unsupported devices are not entitled to updates and that such installations are undertaken at the user’s own risk. Reports of update behaviour on those systems vary, and the long-term reliability of the approach is not something anyone can guarantee.
A third area of debate is interface design. Some users object to specific Windows 11 changes — the taskbar, the right-click menu, the search integration — and treat those as sufficient reason to stay. Others regard the objections as adjustment friction that fades within weeks. This is a matter of preference rather than fact.
What are the practical options?
Check eligibility first. Run the PC Health Check tool, and if it reports a TPM or Secure Boot failure, look in the firmware settings before concluding the machine is ineligible. Many devices have the features present but disabled.
Upgrade in place if eligible. The upgrade preserves files and most applications. Back up first regardless. Windows has historically offered a limited rollback window after a version upgrade, so if the new version proves unworkable there is usually a way back for a short period.
Consider extended security updates. Microsoft has offered extended security update programmes for previous Windows versions past end of support, on a paid or conditional basis and for a limited number of years. Terms differ by version and by whether the customer is a consumer or an organisation, so check the current programme details directly rather than relying on summaries.
Replace or repurpose the hardware. A machine that cannot run a supported Windows version can still run a supported Linux distribution, or serve as an offline device for a task that does not need network access. Isolating an unpatched machine from the internet substantially reduces its exposure.
If staying on an unsupported system, reduce the blast radius. Use a modern browser that still receives updates, keep the machine off networks that carry sensitive data, maintain offline backups, and assume that anything on the device could be compromised.
What should readers watch next?
Watch the terms and duration of any extended security update programme, since that determines how long staying put remains a defensible choice rather than an accumulating risk. Watch third-party browser and application vendors, because when they drop support for an older Windows version, the practical usability of that system degrades faster than the operating system itself does.
Watch whether hardware requirements shift for future Windows releases, which would indicate whether the current approach is a one-off reset or a new baseline. Finally, watch how second-hand and refurbished markets absorb ineligible machines — that flow is where the environmental argument will be settled in practice rather than in principle.
Frequently asked questions
Will my Windows 10 PC stop working after end of support?
No. The machine continues to boot and run as before. What stops is the routine delivery of security updates from Microsoft, which means newly discovered vulnerabilities in the operating system are not patched. The practical risk grows over time rather than arriving all at once. Applications may also begin dropping support for the older version, which affects usability separately from security.
How do I find out whether my PC can run Windows 11?
Microsoft distributes a PC Health Check application that reports whether a device meets the requirements and names the specific check that failed. If it flags TPM or Secure Boot, inspect the firmware settings, as some machines have the hardware present but disabled by default. Enabling those features in BIOS or UEFI can change an ineligible verdict to an eligible one without any hardware change.
Is the upgrade to Windows 11 free?
For eligible Windows 10 devices, Microsoft has offered the upgrade at no cost. Eligibility depends on meeting the published system requirements, not on the age of the licence alone. The offer terms have been subject to change over time, so the current position should be confirmed on Microsoft’s own support pages rather than assumed from older coverage.
Can I install Windows 11 on unsupported hardware?
It is technically possible using documented configuration changes or third-party installation tools. Microsoft’s stated position is that unsupported devices are not entitled to updates and that the user accepts the risk. Reported experiences vary, and there is no guarantee that update behaviour will remain consistent over time. Treat it as a workaround with an uncertain support lifetime, not an equivalent to a supported installation.
What are extended security updates?
They are a mechanism by which Microsoft continues to supply security patches for a Windows version after its normal end of support, typically for a limited number of years and typically at a cost. Availability, price and duration have differed between Windows versions and between consumer and organisational customers. Check the current programme terms directly, because the details change and older summaries go out of date quickly.
Is switching to Linux a realistic alternative?
For general web browsing, document work and media, a mainstream Linux distribution runs well on hardware that Windows 11 rejects, and current versions are actively supported. The obstacles are specific Windows-only applications, some professional software with no equivalent, and certain hardware peripherals with limited driver support. Test with a live USB session before committing, which lets the system run without altering the existing installation.
Sources and further reading
- Microsoft’s official Windows support documentation, for published system requirements, lifecycle dates and extended security update programme terms.
- Microsoft’s PC Health Check tool and its accompanying guidance, for how eligibility is assessed on an individual device.
- Independent web analytics providers that publish desktop operating system market share estimates, useful for direction of travel but not authoritative counts.
- Technology press coverage and community forums, including the Reddit technology community where this discussion surfaced, for user-reported experiences with upgrade prompts and unsupported installations.
Surfaced from the reddit:technology signal “slow operating system upgrade adoption”. AI-assisted draft, editorially reviewed.
