Microsoft changes Windows 11 Installation Assistant to prevent unnecessary 26H2 reinstalls (updated)
Windows 11 26H2 changes how Microsoft’s Installation Assistant handles upgrades from older versions.
Stay current with the Windows 11 version 26H2 (2026 Update). This release will be available in the second half of 2026 and delivered via a lightweight enablement package for devices already running versions 25H2 and 24H2, enabling a fast installation experience.
Windows 11 version 26H2 is built on the same core platform as version 25H2, ensuring seamless app compatibility while resetting the support lifecycle.
Key details
- OS: Windows 11
- Update name: 2026 Update
- Version: 26H2
- Build: 26300
- Official release date: September 29, 2026.
- Start support date: September 29, 2026.
- End support date: October 10, 2028.
Hardware requirements
- Processor: 1GHz or faster CPU or SoC with two or more cores with SSE4.2 and POPCNT instructions.
- RAM: 4GB.
- Hard drive: 64GB or larger.
- System firmware: UEFI, Secure Boot capable.
- TPM: Trusted Platform Module (TPM) version 2.0.
- Graphics: Compatible with DirectX 12 or later with WDDM 2.0 driver.
- Display resolution: High definition (720p) display that is greater than 9” diagonally, 8 bits per color channel.
- Networking: Microsoft account and internet.
This section will contain all version 26H2-related articles, including news, tutorials, editorials, and reviews.
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