Versioni Windows e MacOS

The Windows 10 LTSC build, on its own separate, much longer support timeline than consumer/Pro Windows 10 — mainstream support runs to January 2027, well past Windows 10 Home/Pro's October 2025 cutoff.

Microsoft officially ended free support for Windows 10 on October 14, 2025 — devices still running it no longer receive security updates unless enrolled in the consumer Extended Security Updates program.

Like Windows 10 Home, mainstream support ended October 14, 2025 — Pro's Extended Security Updates path runs longer for organizations paying for the traditional multi-year ESU program.

Windows 11 tailored for schools and universities — effectively Enterprise's management/security feature set, licensed through academic institutions instead of businesses.

The large-organization edition of Windows 11, licensed exclusively through Volume Licensing, adding advanced deployment, security, and management features on top of Pro.

The standard consumer edition of Windows 11 — the version that ships pre-installed on most new retail laptops and desktops.

A Long-Term Servicing Channel build of Windows 11 for embedded and dedicated-function devices — kiosks, ATMs, and industrial equipment — that gets only security updates for a decade, no feature updates at all.

The professional/prosumer edition of Windows 11, adding BitLocker, Hyper-V, Remote Desktop hosting, and domain/Entra ID join over Home.

A specialized Pro variant for high-end workstation hardware — multi-socket CPUs, huge RAM capacities, and the ReFS filesystem for large data-integrity-sensitive workloads.

A stripped-down, cloud-focused edition of Windows 11 built for inexpensive school laptops, Microsoft's answer to Chromebooks in the education market.

Fully out of support since January 2020, with even the paid Extended Security Updates program for businesses having ended in January 2023 — Microsoft no longer offers any download or update path for it at all.

Out of support since January 2023 — unlike Windows 7 or 10, Microsoft never offered any Extended Security Updates program for 8.1 at all, consumer or business.

Out of support since October 2023 — still running in production on a meaningful number of older enterprise servers, with paid Extended Security Updates covering it only through October 2026.

A refinement release over Server 2012, sharing its exact same end-of-support and ESU deadline — out of regular support since October 2023, with the paid ESU path also closing in October 2026.

Introduced Windows Containers and Nano Server — currently in its extended-support-only phase, with full end of support (including the eventual ESU cutoff) landing January 2027.

Added Windows Admin Center and Storage Migration Service over Server 2016 — currently in its extended-support-only phase, with full end of support landing January 2029.

Microsoft's previous-generation server OS, still widely deployed, with secured-core server hardware support and Azure Arc hybrid-cloud integration as its headline additions over Server 2019.

Microsoft's current-generation server OS, adding hotpatching (install security updates without a reboot), expanded Storage/Hyper-V performance work, and further secured-core hardening over Server 2022.