System Preparation Tool

Winsage
February 20, 2026
Microsoft has announced Windows 11 26H1, a release intended exclusively for new ARM devices launching in 2026, specifically those powered by the Snapdragon X2 series. This version is not a feature update for existing PCs and will not appear in Windows Update notifications for users on Intel or AMD hardware. Windows 11 26H1 is based on a new internal core designed for ARM silicon, referred to as a "hardware-optimized release," and may carry the codename Bromine. The OS Build number for 26H1 is 28020.1611, distinguishing it from previous updates. Key enhancements include full integration of semantic natural-language search within Settings, an increase in the FAT32 format limit from 32 GB to 2 TB, and UI refinements. Notable omissions include the removal of .NET Framework 3.5 as an optional feature and a safeguard preventing the System Preparation Tool from running in Safe Mode. Windows 11 26H2 is expected later in 2026 for existing PCs.
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