Windows 10 vs Windows 11 in 2026: What Actually Changed

Windows 10 lost free security updates on October 14, 2025, and the one-year grace period most people assumed they had is actually longer: Microsoft now runs its consumer Extended Security Updates (ESU) program through October 12, 2027. That changes the "should I upgrade" math for 2026 — but Windows 11's hardware floor (TPM 2.0, Secure Boot, a short list of supported CPUs) still blocks a large share of Windows 10 PCs from moving at all. Here is what actually differs between the two operating systems right now, and what it means for a 2026 upgrade decision.

Windows 10's support status in late 2026, in plain terms

Windows 10 reached end of support on October 14, 2025. Past that date, Microsoft stopped shipping feature updates, technical assistance, and routine security fixes for the OS. The PC keeps booting and running exactly as before — this isn't a kill switch — but any vulnerability discovered after that date goes unpatched unless the device is separately enrolled in Extended Security Updates.

That's the detail a lot of "Windows 10 is dead" headlines skip: Microsoft's own support page is explicit that devices without ESU face "greater risk from viruses and malware" rather than simply stopping working. For anyone still running Windows 10 22H2 in October 2026, the real question isn't whether the PC still works — it's whether it's still getting patched.

The ESU safety net now runs to October 2027, not 2026

Microsoft's original consumer ESU messaging pointed to a one-year bridge ending October 13, 2026. That date has since moved: Microsoft's own consumer Extended Security Updates page now states enrollment stays open "until the program ends on October 12, 2027," and devices already enrolled continue automatically through that date with no extra action.

Enrollment has three paths, and only one costs money:

• Free — sync your PC settings to the cloud using Windows Backup.
• Microsoft Rewards — redeem 1,000 points instead of paying.
• One-time purchase — $30 USD (or local equivalent plus tax), which covers up to 10 devices tied to one Microsoft account.

ESU is strictly a security patch, not a feature stream: Microsoft's page spells out that it excludes new features, non-security fixes, and technical support. Eligibility requires Windows 10 version 22H2 with the latest updates and licensing package (KB5126256) installed, an administrator Microsoft account that isn't a child account, and the device can't be domain-joined, Entra-joined (though Entra-registered personal devices qualify), MDM-managed, or already carrying a commercial ESU license. Pricing and enrollment mechanics can differ by region, including the EU/EEA, so anyone relying on ESU should confirm current local terms on Microsoft's page before the window gets closer to its 2027 close.

One side effect of the longer ESU runway: Microsoft 365 apps running on Windows 10 get their own, even longer tail of security patches — through October 10, 2028 — separate from the OS-level ESU clock.

Windows 11's hardware floor: TPM 2.0 and Secure Boot haven't softened

This is the part that actually decides whether "upgrade" is even an option. Per Microsoft's official Windows 11 specifications page, the minimum requirements are:

None of that has relaxed since Windows 11's 2021 launch. The TPM 2.0 and Secure Boot requirements in particular are why plenty of otherwise-capable Windows 10 PCs — even ones bought in 2017–2019 — still can't take the free upgrade: the chip either isn't present, is an older TPM 1.2 revision, or is disabled in firmware. Microsoft's upgrade path also requires the Windows 10 device to already be on version 2004 or later. Copilot+ PCs add a separate, higher tier on top of this baseline — a 40+ TOPS NPU, 16 GB of RAM, and 256 GB storage — but that's only required for Copilot+-exclusive features like enhanced Windows search and Click to Do, not for Windows 11 itself.

What the interface and feature set actually look like now

Functionally, Windows 11 is still "an update to what you know," as Microsoft's own administrator overview puts it — same underlying app compatibility and management tooling, different shell. The changes that show up day to day:

• Centered Start menu and taskbar by default (movable back to the left in Taskbar settings), with a Pins/Recommendations layout replacing Windows 10's live-tile grid.
• Snap Layouts and Snap Groups — hovering a window's maximize button exposes multi-window layouts, and the taskbar remembers grouped app sets so you can reopen a whole layout at once. Since version 22H2, dragging a window to the screen's top edge triggers the same picker.
• Widgets on the taskbar for a personalized feed (weather, calendar, stock prices, news).
• Virtual desktops managed directly from a taskbar icon, rather than buried in a menu.
• Windows Terminal built in — PowerShell, Command Prompt, and Azure Cloud Shell in one tabbed app, no separate Store download required.
• Microsoft Edge only — Internet Explorer is gone; legacy sites fall back to IE Mode inside Edge.
• Copilot integrated into the taskbar as a standing AI assistant that can answer questions, help with writing, and search files across apps — something Windows 10 never got natively. Developers extending their own tools in similar directions can see how that plays out in GitHub Copilot's recent model upgrade.

Annual feature updates (versus Windows 10's twice-yearly cadence in its later years) and smaller, delta-only update downloads round out the practical differences.

Security: same core protections, hardware-backed by default

Windows 11's security model builds on the same stack as Windows 10 — Microsoft Defender Antivirus, Windows Security app, Windows Hello for Business — but makes hardware-rooted protections (TPM-backed credential storage, virtualization-based security groundwork) the baseline rather than an opt-in on supported silicon. That's the actual payoff of the TPM 2.0/Secure Boot requirement: it isn't arbitrary gatekeeping, it's Microsoft setting a hardware floor under which those protections can't be guaranteed to work. On Copilot+ hardware specifically, Microsoft also markets "built-in security from the chip up" with on-device threat detection, though that's a hardware-tier feature rather than something separating Windows 10 and Windows 11 broadly.

The bigger near-term security gap, though, is simpler than any feature comparison: a fully-patched Windows 11 PC gets new vulnerability fixes automatically, while a Windows 10 PC only does if it's enrolled in ESU. Readers tracking how quickly vendors patch disclosed flaws in general can compare that against recent incidents like the Microsoft Authenticator token flaw, which needed an out-of-cycle fix.

Performance: the honest answer is "it depends on the hardware, not the OS"

Microsoft doesn't publish a like-for-like Windows 10 vs. Windows 11 speed benchmark, and the performance claims it does make are tied to new hardware, not the OS swap itself. On its Windows 11 product page, Microsoft cites Copilot+ PCs as "up to 5 times faster than many older Windows PCs," based on Cinebench 2024 multi-core scores against five-year-old machines — a claim about new silicon, not about Windows 11 outrunning Windows 10 on identical hardware.

In practice, the honest framing is: on hardware that already meets Windows 11's TPM/Secure Boot/CPU floor, day-to-day performance differences between the two OS versions are modest, and some users report Windows 11 using more background resources on lower-RAM machines. On hardware too old to officially support Windows 11, there is no fair comparison to make, because that hardware's upgrade path runs through replacement, not optimization.

Side-by-side: Windows 10 (ESU era) vs. Windows 11 in 2026

Should you actually upgrade right now?

For most people the decision tree is short: if the PC meets Windows 11's minimums, the upgrade is free and the main cost is the adjustment to a new shell — worth doing before relying on ESU as a long-term plan. If the PC fails the TPM 2.0 or Secure Boot check, the realistic options are enrolling in consumer ESU as a bridge, replacing the hardware, or accepting the growing security exposure of an unpatched OS. Enterprises and IT teams managing fleets face the same fork but on a longer, licensed ESU timeline through Microsoft's commercial program rather than the consumer one. Teams standardizing their developer tooling around a single platform may also want to weigh how dependent their workflow is on Windows-specific integrations — for context on how fast that tooling layer moves, see recent updates to GitHub Copilot's app and review tooling.

If you're replacing hardware: moving files is the easy part

For anyone whose current PC fails the TPM 2.0 or Secure Boot check and ends up buying new hardware instead of enrolling in ESU, the migration itself isn't the bottleneck. Microsoft's end-of-support page points to Windows Backup for carrying files, settings, and some app data over to a new Windows 11 PC through a Microsoft account sync, plus manufacturer trade-in and recycling programs for the old device. The harder part is usually deciding whether the old machine is worth keeping alive on ESU for another year versus retiring it — a call that mostly comes down to how much that specific hardware still does for you and whether its other components (storage, battery, ports) are holding up as well as its CPU generation is.

Bottom line

Windows 10 isn't gone, but it is no longer self-sufficient: without ESU enrollment, it stopped receiving security fixes in October 2025, and even with ESU, that bridge now closes October 12, 2027 rather than 2026. Windows 11 hasn't changed its entry requirements to make the move easier — TPM 2.0 and Secure Boot are still hard gates — but for hardware that clears them, it remains the only branch of Windows still getting both security and feature updates. The practical 2026 decision isn't really "Windows 10 vs. Windows 11" as competing products; it's whether a given PC is eligible for Windows 11 at all, and if not, how long ESU is meant to last as a stopgap.

Written byFelix Moreau

Felix Moreau writes Pandromeda's software coverage and how-to guides. He covers Windows, macOS and Linux updates, the apps people rely on, emulators and developer tools, and turns official documentation into clear, numbered steps that work on the current version.

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