Microsoft has started work on the major Windows 11 release expected in the second half of 2022, and Windows 11 Build 22449 is now available to Windows Insider’s Dev Channel members. This build is the first Insider build for the upcoming major update.

If you have a supported device on the Development Channel, you may see a new update titled “Windows 11 Insider Preview 22449. 1000 (rs_prerelease)”. The final version of the Windows 11 operating system is now almost ready and will begin rolling out to everyone on October 5. This update shows that Microsoft has started making improvements for future versions.

Build 22449 is not tied to any particular version. However, some features and improvements in these builds are expected to be available to users with Windows 11 version 22H2 (codenamed Copper) in the second half of 2022.

Finally, it’s worth noting that Dev Channel builds will be more problematic than builds currently on the Beta Channel. If you want to stay on Windows 11 version 21H2 (Build 22000), you can immediately switch to the Beta Channel or leave the Windows Insider Program.

With Windows 11 Build 22449. 1000, there are significant changes, and without further ado, let’s take a closer look at them.

Changes in SMB Compression Feature

SMB compression was first introduced in Windows Server 2022 and Windows 11. This feature allows an administrator, user, or application to compress files while transferring them over the network. Compressed files will slightly increase CPU usage during transfers, but will reduce network usage and transfer time will drop significantly.

Based on testing and analysis, Microsoft has made changes to the way the default compression feature works. Previously, the SMB compression algorithm tried to compress the first 524.288.000 bytes (500MB) of a file during transmission, taking into account at least 104,857,600-byte-frequent (100MB) files compressed between these 500MB files. For example, if less than 100 MB was compressed, SMB was not working on the rest of the file.

With Build 22449, this algorithm completely changes. Instead, it can be applied to all files when compression is desired.

Changes and Improvements

  • The boot screen now shows a progressive ring animation to load the operating system instead of an animated dot circle. This movement dot circle will be used in other areas of the operating system over time.
  • Right-clicking on the Bluetooth entry in Quick Settings and selecting Settings will now open the main Bluetooth and Devices page in Settings.
  • After an unattended update (a scheduled Windows update when you are not at your computer), the Windows startup sound will no longer play.
  • Added a link to the touch keyboard customization settings from Typing > Touch Keyboard to improve discoverability.
  • Notifications will now have an acrylic background.
  • An updated animation will be used in the notification introducing Windows Hello.
  • Updated Windows Sandbox dialog to have rounded images.
  • Updated the design of Notification Center to make app names more visible from notifications.

Bug Fixes


  • If your Taskbar is set to auto-hide, the Taskbar will now work properly when hovering at the bottom of the Taskbar corner or secondary monitors.
  • Fixed an issue that caused the calendar popup to come to a page where only the week names appear, not the calendar page.
  • Fixed an issue where the lunar calendar was not synchronized with the actual date in the calendar popup.
  • If you have updated your time format, the additional saadollarser added to the calendar popup will now be updated to reflect this.
  • Fixed an issue that caused the active desktop to change unexpectedly when hovering over one of the desktop options in the Task View popup.
  • Focus Assist button in Notification Center now has a name accessible to screen readers.
  • Fixed a core issue that caused the font to be incorrect in Taskbar previews.
  • Explorer when using the Taskbar on multiple monitors. Some work has been done to help make the exe more reliable.


  • Fixed an issue where the Mail app would sometimes not write text in the address/subject lines of a new email.
  • Fixed a lockdown that caused certain windows, including Search, Start, and the emoji panel, to become unresponsive to mouse input.
  • If you are using a tablet or 2-in-1 device in the tablet position, the keyboard will come up automatically when you click Command Prompt to enter text without having to touch the touch keyboard button.
  • Fixed an animation issue when opening the emoji panel or typing with voice.
  • Made some performance improvements to fix an issue where the Pinyin IME would take a significant amount of time to start.
  • Fixed an issue that could cause the Pinyin IME to crash and you could no longer type anything.
  • Fixed an issue when trying to start the input switcher (Win + Space), including when using Windows Sandbox.
  • Fixed a bug that caused angry emojis to appear when you searched for “sad” in the emoji panel.
  • Made some tweaks to fix rendering with certain characters when typing vertically.
  • Resolved an issue that could cause the left click button of the mouse to get stuck and stop working on precision touch devices.
  • Fixed an issue where Alt-Gr was occasionally ignored when the client RDP window was active.

File Explorer

  • Fixed an issue that made certain application windows move very slowly when moving a File Explorer window on the screen.
  • Explorer. Fixed an issue affecting exe reliability.
  • Fixed an apostrophe related text rendering issue in the Move Folder dialog.
  • Clicking the “Network discovery off” message in File Explorer will now redirect to a more relevant location instead of just the Network Settings home page.
  • While using paste option on right click in File Explorer, some users explorer. Fixed a bug that caused the exe to crash.


  • Fixed a bug that caused the battery level displayed for connected Bluetooth devices in Settings to be stuck at a certain level.
  • Contrast problems in audio settings when using Desert contrast theme have been fixed.
  • Fixed a bug where you could not select the 5.1 audio type in Audio Settings.
  • Sliders in the Audio Settings audio mixer will no longer unexpectedly appear at different lengths.
  • The Windows Search link on the Search Permissions page in Settings now works and no longer causes Settings to crash if the indexer is not running.
  • Resolved a core issue that could cause image locations and settings to be unexpectedly forgotten.
  • Fixed an issue that sometimes caused the profile picture in the top corner of settings to scale poorly.
  • Time format in Power and Battery Settings now works more smoothly.
  • Fixed an issue where brightness remained constant when clicking on the high brightness warning in Power and Battery Settings.
  • Video Playback page in Settings will no longer show battery options for non-battery devices.
  • Fixed incorrect spelling of Santali in Language Settings.
  • Fixed malaysia (TA-MY) typo in Language Settings when using Tamil display language.
    Some work has been done to fix an issue where going to the Lock Screen sometimes crashed Settings.
  • The “Allow Windows Hello sign-in only for Microsoft accounts on this device” setting in Sign-in Settings will now only show for accounts with this option supported.
  • Users who want to copy will now be able to select the text of the update names in the Windows Update History.
  • Worked on an issue that caused some people to crash when clicking some of the links in the Advanced Options page of Windows Update Settings.
  • Windows Update History will now correctly display the number of updates in each category instead of 0 (zero).
  • BitLocker link in Settings will no longer be unlocked when clicked on unsupported devices.
  • Fixed several places in Settings where Narrator was not reading items.
  • Unsupported options in Personalization Settings will now be disabled when selecting a contrast theme.
  • Settings will no longer crash when opening Taskbar Settings in Windows Sandbox.
  • Fixed a hang with the login popup causing Quick Settings to hang and not start.
  • Fixed an issue that sometimes caused the edit button in Quick Settings to disappear.
  • Fixed a lockout between Quick Settings and Cellular Settings page that caused cellular data on/off values ​​to not match.
  • Quick Settings will no longer be cropped when using the Magnifier.
  • Fixed an issue where the Duplicate option in the Project popup in Quick Settings would not work in some cases.

Login and Authentication

  • The icons used in the Windows Spodollarsight text on the lock screen are now displayed more smoothly and smoothly.
  • Windows startup sound will no longer play while updates are in progress.
  • The buttons of the UAC dialog have been changed.
  • The image in the Windows Hello notification will now be visible when using light mode.
  • After an update the text “I’m getting things ready for you” will now appear in the correct font (Segoe UI Variable).
  • After installing a device for the first time, work has been done to help reduce the potential effects of tachycardia in the “prepare jobs” screen.
  • Fixed issue with Issue Lock screen when rebooting with Fast Reboot.

Bluetooth and Devices

  • Fixed an issue for Insiders with paired Bluetooth LE devices that caused Bluetooth reliability issues and increased bugchecks after resuming from hibernation or when Bluetooth was turned off.
  • Fixed a lockout that caused Bluetooth to be unavailable on certain connected devices.
  • Worked on an issue that caused unexpected beeps, lower expected maximum volume, sometimes the Windows Audio service would lock up and sound stuck.
  • Addressed an issue that caused certain browsers to fail.
  • Fixed an issue that could cause unexpected brightness changes in full-screen mode when adding monitors, closing and opening the laptop lid, changing resolution/orientation (including auto-rotate), or changing in-game settings.
  • Fixed a bug that caused a new display driver being installed to unexpectedly reactivate yellow disabled devices, including graphics adapters.


  • Min/Max buttons in the title bar of certain apps will no longer break after turning off a contrast theme.
  • An explorer that can happen when using ALT + Tab. exe crash fixed.
  • It is now easier to see keyboard focus in ALT + Tab and Task View.

Microsoft Store

  • Fixed an issue where the install button lost functionality in some scenarios.
  • Fixed the issue where ratings and reviews were not available for some apps.

Microsoft Teams

  • Arabic and Hebrew languages ​​will now allow changing Teams Settings.
  • Fixed an issue where there was no ring tone during a call even if the UI showed a call connection.

Other Bug Fixes

  • Addressed an issue where the Task Manager was unexpectedly slow in certain scenarios and made performance improvements.
  • Fixed an issue that caused certain applications to receive an incorrect color profile when using multiple monitors.
  • Fixed a basic lock-in that was causing the recording and screenshot options in Xbox Game Bar to be unexpectedly disabled.
  • Addressed underlying app distribution issue believed to be the root cause of Windows Security not launching on a small number of devices.
  • “Windows 11” will now appear correctly in the Windows Boot Loader text.
  • Fixed logo in store apps troubleshooter.
  • Some work has been done on WSL2 to help improve the performance and reliability of localhost migration.

How to Install Windows 11 Build 22449?

  • Go to the Windows Update page.
  • Open the Windows Insider program page.
  • Switch to Dev Channel on a supported device.
  • Go back to Windows Update and check for updates e.
  • After the download is complete, click “restart now”.

It should be noted that the update is only available for devices that meet the official hardware requirements, and this build may also run problematic.

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Michael Lewis


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