People shop laptops as if the metal and the operating system shared a birthday. They do not. The hinge can outlast the last security patch. The patch clock is a vendor policy you can look up. Microsoft publishes servicing months per Windows version. Apple shows, in public, which macOS generations still get fixes. Google prints an auto-update expiration date per Chromebook platform. A four-year warranty on the battery is a different document.
If you are reading this in 2026 with a Windows 10 machine that still 'works,' Microsoft's own end-of-support page is the relevant news: it works, and it is no longer getting free security updates as of 14 October 2025.
| Platform | What 'supported' means | How a laptop falls off |
|---|---|---|
| Windows 11 Home / Pro | Each annual version: 24 months of monthly quality updates | You skip feature updates until the version's end-of-updates date. The PC can be two years old and already unsupported. Stay current and the same hardware can keep going until it cannot run a future Windows 11. |
| Windows 11 Enterprise / Education | 36 months per version | Same rule, longer fuse. Still not 'this chassis is patched until 2032' unless IT keeps moving versions. |
| Windows 10 | End of support 14 October 2025 | Already off the free train. Paid ESU for eligible 22H2 PCs through 12 October 2027, security-only. |
| macOS | Apple's security-releases list; in August 2026, three major versions | A Mac that cannot install the oldest still-patched macOS stops getting those updates. There is no single published year count per model on the security page. |
| ChromeOS | 10 years of automatic updates from the platform release date | Look up the model's AUE date. After that, the device may still boot in a verified state; Google says policies and support will not work as intended. |
Windows 10's actual calendar
- 14 October 2025Windows 10 end of support
Microsoft: no technical support, no feature updates, no regular security updates. The PC continues to function.
- Through 12 October 2027Paid Extended Security Updates
Critical and important security updates for enrolled Windows 10 22H2 devices. Not new features. Not a helpdesk. Microsoft's consumer ESU page says you can enroll until the program ends.
- 13 October 2026Example: Windows 11 24H2 Home/Pro
Microsoft's release-information table: end of updates for Home/Pro on 2026-10-13. If you never took 25H2, a 'new' 24H2 laptop is about to leave servicing.
Microsoft Windows 10 end-of-support pages; Windows 11 release information; ESU program page.
Hardware gates are the second clock. Windows 11 has CPU, TPM, and Secure Boot requirements that left a large pile of otherwise fine Windows 10 PCs behind. A buyer in 2026 should confirm the laptop ships with a currently serviced Windows 11 version and a CPU Microsoft still allows on the next one. Apple's gate is quieter: each autumn, some Macs drop off the new macOS, then they live on the previous version until that version leaves the three-deep security list.
Chromebooks are the most honest consumer label in this set, because Google publishes the expiration with the platform. Ten years from platform release is long. A three-year-old used Chromebook may have seven years left or two. The AUE date is the spec. 'Chromebooks get long support' is not.
Linux can extend a machine's life if you will maintain it. It is not a Microsoft or Apple promise. Firmware and Wi-Fi drivers still age. Treat Linux as a plan, not as a hidden clause in a Windows SKU.
How to decide whether a device needs replacing is the broader hardware page. How to make software updates routine is the habit. This page is only the vendor calendars so you stop asking a five-year-old marketing sentence to do the work of a lifecycle table.
Read the OS clock
- 01
Windows: stay on a version that still has a future end-of-updates date. 24 months Home/Pro per version.
- 02
Windows 10 is already past free support. ESU is a paid, dated bridge.
- 03
Apple: three macOS generations in the security list, as of August 2026. Chromebooks: 10-year AUE from platform date.
Questions
- 01Does a three-year manufacturer warranty mean three years of Windows updates?
No. Warranty is parts and labor. Updates are the OS vendor. They can end on different days.
- 02If I never connect to the internet, can I keep Windows 10?
Air-gapped machines are a specialist setup. A normal home laptop that checks email is on the internet. Microsoft's warning about malware risk applies.
- 03Will Apple say how many years my new MacBook gets?
Not as a single guaranteed integer on the security-releases page. Infer from which models can install the current macOS, and assume you want hardware that can take the next two after that.
