Insider KB5089569 Windows 11 Insider Experimental (25H2) build 26300.8553 - May 29



 Windows Insider Blog:

As a reminder, these release notes apply to those who are in the Experimental channel, formerly known as the Dev Channel. As we begin the transition to the new Windows Insider Program, all new build release notes will be labeled under the new channel names, even though Insiders in the Dev Channel may not yet find themselves having transitioned to Experimental. See the Windows Insider Blog for more details.


Changes and improvements gradually being rolled out

[Start menu]​

This update brings a number of improvements for the Start menu as first outlined in the Making Taskbar and Start more personal Insider blog. This includes:
  • Renamed "Recommended" section to "Recent" in Start and Settings page
  • Section-level toggles to independently show or hide Pinned, Recommended, and All.

  • Choose between a small and large Start menu, in addition to "Automatic (default)" setting option that's already available today

  • The option to hide your name and profile picture in Start

  • Redesigned Start menu settings page
Screenshot showing new start menu customization options

Screenshot showing new start menu customization options.

Feedback: Share your thoughts in Feedback Hub (WIN + F) under Desktop Environment > Start

[Search]​

  • Search by Substring: Files with compound names or content (e.g., MeetingNotesApril, ProjectStatusReport) are now easily discoverable by typing “april” or “status”.

[Taskbar]​

  • Fixed a few small visual polish issues when using the taskbar in alternate positions. Thanks Insiders that have been sharing feedback so far!
  • You can now use a touch swipe to invoke the taskbar when using alternate taskbar positions.

Known Issues

[Reset PC]​

  • [Fixed] Resetting your PC may get stuck when using "Reset this PC." To complete the reset successfully, choose the cloud download option (Cloud PBR) instead of local.

Reminders for Windows Insiders in the Experimental channel

  • Updates are based on Windows 11, version 25H2 via an enablement package (Build 26300.8553).
  • Many features are rolled out using Controlled Feature Rollout technology, starting with a subset of Insiders and ramping up over time as we monitor feedback to see how they land before pushing them out to everyone in this channel.
  • For Windows Insiders who want to be the first to try new features, see the available list of features to toggle on at the Feature flags page under Settings > Windows Update > Windows Insider Program.
  • The desktop watermark shown at the lower right corner of the desktop is normal for Windows Insider pre-release builds.
  • Features and experiences included in these builds may never get released as we try out different concepts and get feedback. Features may change over time, be removed, or replaced and never get released beyond Windows Insiders. Some of these features and experiences could show up in future Windows releases when they're ready.
  • Some features in active development we preview with Windows Insiders may not be fully localized and localization will happen over time as features are finalized. As you see issues with localization in your language, please report those issues to us via Feedback Hub.
  • Check out Flight Hub for a complete look at what build is in which Insider channel.


 Source:



Check Windows Updates


ISO from Microsoft:



UUP Dump:

64-bit ISO download:

ARM64 ISO download:

 
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Normally you wouldn't notice this problem because the "White Flash" only appears for a moment.
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This is a problem that exists in all builds, not just in Beta or Experimental.
 

My Computer

System One

  • OS
    Windows 11, version 25H2 (26200)
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 9950X 16-Core Processor
    Motherboard
    ASRock B650M PG Riptide
    Memory
    DDR5-6000 (CL36) 64.0 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 4090
    PSU
    1200W
    Case
    Phanteks Enthoo Pro 2
    Cooling
    Noctua NH-D12L

My Computer

System One

  • OS
    26200.8037
    Computer type
    PC/Desktop
    CPU
    i5-11400F
    Motherboard
    Gigabyte
    Memory
    32GB
    Graphics Card(s)
    Geforce GT-1030
    Keyboard
    Logitech K400
    Mouse
    Logitech M720
    Internet Speed
    600 Mb
    Browser
    Edge

My Computer

System One

  • OS
    Windows 11, version 25H2 (26200)
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9 9950X 16-Core Processor
    Motherboard
    ASRock B650M PG Riptide
    Memory
    DDR5-6000 (CL36) 64.0 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 4090
    PSU
    1200W
    Case
    Phanteks Enthoo Pro 2
    Cooling
    Noctua NH-D12L
zone of the device.
 

My Computer

System One

  • OS
    26200.8037
    Computer type
    PC/Desktop
    CPU
    i5-11400F
    Motherboard
    Gigabyte
    Memory
    32GB
    Graphics Card(s)
    Geforce GT-1030
    Keyboard
    Logitech K400
    Mouse
    Logitech M720
    Internet Speed
    600 Mb
    Browser
    Edge
 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    TerraMaster F8 SSD Plus NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Amazon Basics Wired Full Keyboard MD005
    Mouse
    Logitech MX Master 4
    Internet Speed
    2 Gbps Download and 100 Mbps Upload
    Browser
    Chrome and Edge
    Antivirus
    Microsoft Defender
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    CyberPower CP1500PFCLCD
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Surface Laptop 7 Copilot+ PC
    CPU
    Snapdragon X Elite (12 core) 3.42 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Monitor(s) Displays
    15" HDR
    Screen Resolution
    2496 x 1664
    Hard Drives
    1 TB SSD
    Internet Speed
    Wi-Fi 7 and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Microsoft Defender
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