Windows 10 Insider — Preview Build 21390 X86 X64 Iso Incl

Windows 10 Insider Preview Build 21390 (codename "Cobalt") was a minor but visually significant update released to the Dev Channel in May 2021. While it lacked major feature overhauls, it served as a late-stage bridge toward what would eventually become Windows 11, introducing several "Sun Valley" visual elements. Key Features & Visual Improvements Iconography Refresh : The most visible change was the update to Fluent icons for the Task Manager and MSI installers . Terminal Defaulting : Users gained the ability to set Windows Terminal Preview (version 1.9 or higher) as the system's default terminal emulator. Start Menu Polish : If a folder in the "All Apps" list contained only one item, the menu was updated to display that item directly rather than the folder. Taskbar Defaults : Clean installations of this build removed the Mail and Microsoft Store apps from the default pinned taskbar set. Performance & Stability Servicing Pipeline Tests : Build 21390 was notably used for extensive testing of the "servicing pipeline," resulting in multiple cumulative updates (e.g., 21390.1000, 21390.2025) that did not add new features but tested the ability to stack updates. Known Issues : Touchscreen Failures : Some users reported that HID-compliant touchscreens stopped working on certain hardware. Dark Mode Bugs : Search results occasionally failed to follow the system's dark theme settings. Camera Settings : The Windows Camera App did not always respect brightness settings modified via the new Camera Settings page. Announcing Windows 10 Insider Preview Build 21390

You're looking for information on a specific Windows 10 Insider Preview build! The build number you provided, 21390 , is a part of the Windows 10 Insider Preview series. Here's what I found: Build 21390: Released on June 17, 2021 This build is a part of the rs_prerelease branch, which is a pre-release branch for Windows 10. Key Features and Changes: Here are some of the notable changes and features in Build 21390:

Improvements to Windows Search : This build includes improvements to the Windows Search feature, including the ability to search for and open apps, files, and web results directly from the search box. Microsoft Edge Updates : This build includes updates to Microsoft Edge, including improvements to performance, security, and accessibility. Settings App Updates : The Settings app has been updated with some minor changes, including a new design for the " Apps & Features" page. Bug Fixes and Performance Improvements : This build includes various bug fixes and performance improvements to improve the overall stability and reliability of the operating system.

Known Issues: As with any Insider Preview build, there are known issues that Microsoft is working to resolve. Some of the known issues in Build 21390 include: windows 10 insider preview build 21390 x86 x64 iso incl

ARM64 devices : There is an issue with ARM64 devices that may cause the device to become unresponsive or experience a green screen of death. Windows Sandbox : There is an issue with Windows Sandbox that may cause it to not launch or experience errors.

Downloading the ISO: If you're looking to download the ISO file for Build 21390, you can try the following:

Microsoft Insider Preview Website : You can download the ISO file from the official Microsoft Insider Preview website. You'll need to sign in with your Microsoft account and navigate to the "Downloads" section. UUPDump : Alternatively, you can use a third-party website like UUPDump to download the ISO file. Please be aware that using third-party websites may pose security risks. Terminal Defaulting : Users gained the ability to

System Requirements: To install Build 21390, your system should meet the following requirements:

Processor: 1 GHz or faster compatible processor or System on a Chip (SoC) RAM: 2 GB for 32-bit (x86) or 3 GB for 64-bit (x64) Hard disk space: 20 GB for 64-bit OS Graphics card: DirectX 9 or later with WDDM 2.0 Display: 1024x768 or higher

Keep in mind that Insider Preview builds are pre-release software and may not be suitable for production environments or daily use. It's recommended to install this build on a virtual machine or a secondary device to test and provide feedback to Microsoft. Performance & Stability Servicing Pipeline Tests : Build

Windows 10 Insider Preview Build 21390, released in May 2021, is historically significant as one of the final major builds of Windows 10 before the focus shifted to Windows 11. It was primarily available through the Dev Channel (formerly Fast Ring). Key Features & Changes While this build did not introduce massive functional overhauls, it featured visual refinements that bridged the gap between Windows 10 and the then-upcoming Windows 11:

Windows 10 Insider Preview Build 21390: New Icons and Servicing Tests Microsoft recently released Windows 10 Insider Preview Build 21390 to the Dev Channel. While it doesn't introduce a massive overhaul, it brings a fresh set of visual updates and behind-the-scenes stability improvements as part of the ongoing "Sun Valley" iconography refresh. What's New in Build 21390? This build focuses on modernizing the user interface with the following changes: Iconography Improvements : The Task Manager and MSI installers now feature new Fluent Design icons. The Task Manager icon has been simplified, moving away from older skeuomorphic designs to a cleaner, zoomed-in screen look. Windows Terminal Integration : Users can now set Windows Terminal Preview (version 1.9 or higher) as the default terminal emulator on Windows. This means Command Prompt or PowerShell will automatically open within the Terminal experience. Servicing Pipeline Testing : Microsoft is using this build to test the release of multiple cumulative updates (like Build 21390.1000 and 21390.2025) on top of a single build to ensure the reliability of their update mechanisms. Key Fixes and Stability Several long-standing issues have been addressed in this flight: Visual Glitches : Fixed blurry text in the "news and interests" taskbar widget for specific resolutions. Dark Mode : Corrected a bug where text in the File Explorer search box would appear black on a black background when using dark theme. System Reliability : Resolved a svchost.exe crash related to cdp.dll and improved Start menu reliability. Start Menu : Re-enabled the feature that displays a single app directly instead of an empty folder in the "All apps" list. How to Get Build 21390 For those looking to install this build on x86 or x64 systems: The Changelog - Windows Insider Program - Microsoft Learn