--- title: Announcing Windows 11 Insider Preview Build 26300.8170... description: Windows 11 Insider Preview Build 26300.8170 is now available in the Dev Channel. Key changes include raising the FAT32 volume format limit from 32GB to 2TB via... canonical: https://daily.dev/posts/announcing-windows-11-insider-preview-build-26300-8170-dev-channel--mdaoqefpc twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Announcing Windows 11 Insider Preview Build 26300.8170 (Dev Channel) | daily.dev og:description: Windows 11 Insider Preview Build 26300.8170 is now available in the Dev Channel. Key changes include raising the FAT32 volume format limit from 32GB to 2TB via... og:url: https://daily.dev/posts/announcing-windows-11-insider-preview-build-26300-8170-dev-channel--mdaoqefpc og:image: https://api.daily.dev/og/posts/MDaOqEfPC.png og:image:alt: Announcing Windows 11 Insider Preview Build 26300.8170 (Dev Channel) og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Announcing Windows 11 Insider Preview Build 26300.8170 (Dev Channel) **[Windows Blogs](https://daily.dev/sources/windows)** · 4 min read · 0 upvotes · 0 comments ## Summary Windows 11 Insider Preview Build 26300.8170 is now available in the Dev Channel. Key changes include raising the FAT32 volume format limit from 32GB to 2TB via command line, storage settings performance improvements, a fix for incorrect Data Usage values, and a new Secure Boot certificate status indicator in the Windows Security app with color-coded badges. The Feedback Hub also receives version 2.2604.101.0 with design refinements including better default window sizing, session-persistent window size, mouse back button navigation, and fixes for community feedback display and upvote button rendering for Chinese language users. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Announcing Windows 11 Insider Preview Build 26220.8165 \(Beta Channel\)](https://daily.dev/posts/announcing-windows-11-insider-preview-build-26220-8165-beta-channel--zqaisgz9b) · Windows Blogs · 1 upvotes · 0 comments - [Releasing Windows 11 Builds 26100.8313 and 26200.8313 to the Release Preview Channel](https://daily.dev/posts/releasing-windows-11-builds-26100-8313-and-26200-8313-to-the-release-preview-channel-gqa5jm9dd) · Windows Blogs · 0 upvotes · 0 comments - [Announcing Windows 11 Insider Preview Build 28020.1812 \(Canary Channel\)](https://daily.dev/posts/announcing-windows-11-insider-preview-build-28020-1812-canary-channel--7uyrkknsw) · Windows Blogs · 22 upvotes · 2 comments - [Announcing Windows 11 Insider Preview Build 26220.7070 \(Dev & Beta Channels\)](https://daily.dev/posts/announcing-windows-11-insider-preview-build-26220-7070-dev-beta-channels--ra6hbftgk) · Windows Blogs · 1 upvotes · 0 comments --- Tags: [#windows](https://daily.dev/tags/windows) [View this post on daily.dev](https://daily.dev/posts/announcing-windows-11-insider-preview-build-26300-8170-dev-channel--mdaoqefpc) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Announcing Windows 11 Insider Preview Build 26300.8170 (Dev Channel)","url":"https://daily.dev/posts/announcing-windows-11-insider-preview-build-26300-8170-dev-channel--mdaoqefpc","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/announcing-windows-11-insider-preview-build-26300-8170-dev-channel--mdaoqefpc"},"datePublished":"2026-04-10T19:04:58.456Z","dateModified":"2026-04-10T19:05:20.116Z","description":"Windows 11 Insider Preview Build 26300.8170 is now available in the Dev Channel. 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