Windows 11 build 22621.436 and 22622.436 out in the Beta Channel

Microsoft pushes yet another set of update previews for Windows 11 22H2, and here's all you need to know.

Windows 11 update KB5015888
Windows 11 update KB5015888
  • Windows 11 22H2 gets two new updates, including builds 22622.436 and 22621.436.
  • Build 22622.436 comes with new features turned on.
  • Including changes for file sharing, new command-line default, and improvements for File Explorer.
  • Build 22621.436 only includes fixes and no new features.

The Windows team has released two new previews of Windows 11 22H2 in the Beta Channel, including Windows 11 build 22622.436 (KB5015888) with new features turned on and build 22621.436 (KB5015888) with features turned off by default. However, both previews include the same fixes and improvements.

According to the company, build 22622.436 introduces improvements for the Nearby sharing feature, including the ability to select OneDrive to share a local file. It makes the Windows Terminal the default for any command-line application, including Command Prompt and PowerShell. Also, this flight ships with improvements for File Explorer and Start.

On Windows 11 build 22622.436 and 22621.436, the company is making several fixes and improvements available.

File sharing

Starting with build 22622.436, Windows 11 brings two new improvements for sharing files. When using Nearby sharing, the Share interface now uses the UDP protocol (for private networks) and Bluetooth to discover even more devices, including desktop computers.

If you share a local file from File Explorer and other apps that use the Share interface, you can choose OneDrive as a target to directly upload the file to OneDrive and share it further, along with access control options.

Windows Terminal

On this flight and moving forward, Windows 11 will make Windows Terminal the system default for any command-line application, including Command Prompt and PowerShell.


It’s now possible to report animated gifs that you feel are inappropriate from the emoji panel.

Fixes for build 22622.436

This release also ships with specific improvements for File Explorer and the Start menu.

The Start menu fixes the crash that was impacting some Insiders on build 22622.160, while File Explorer addresses these issues:

  • Fixed an issue where the tab order when using CTRL + Tab would be wrong if you rearranged the tabs in File Explorer.
  • Fixed an explorer.exe crash when dragging tabs around.
  • If “Show all folders” is enabled, the dividers in File Explorer’s navigation pane should no longer show. This change, it should also address the issues where dividers were unexpectedly showing in some other folder pickers.
  • Opening a zipped folder in a new tab should no longer have a blank tab name.
  • Removable drives should no longer unexpectedly be displayed in a section by themselves in the navigation pane, which was breaking up the section with This PC and Network.
  • Fixed an issue where the add new tab button wasn’t clearly visible when using Aquatic or Desert contrast themes.
  • A faint line should no longer display between the current tab and the command bar.
  • Updated the tooltip when hovering over a tab to suggest using CTRL + W to close the tab (rather than CTRL + F4, which didn’t work).
  • If the focus is on the tab row, CTRL + W will no longer unexpectedly close two tabs instead of just the tab in focus.
  • Fixed an issue where the tab row might unexpectedly expand vertically, covering the command bar contents.

Fixes for builds 22622.436 and 22621.436

Although build 22621.436 doesn’t include new features, it shares the same general fixes available on build 22622.436.

  • Fixed an issue that prevents troubleshooters from opening.
  • Fixed an issue that caused the Smart App Control to block catalog-signed files.
  • Fixed an issue that might highly distort photos you take using the Camera app. This issue occurs when using certain cameras under certain low light conditions.
  • Fixed an issue that throws an exception when you debug drivers using Visual Studio 2022 version 17.2 or later.
  • Fixed an issue that caused the Windows profile service to fail sporadically. The failure might occur when signing in. The error message is, “gpsvc service failed to sign in. Access denied”.
  • Fixed an issue that prevents virtualized App-V Office applications from opening or causes them to stop responding.
  • Fixed an issue resulting in a small number of Insiders in the Beta Channel experiencing cyclical crashes in Explorer.exe and other Windows UI components, making the screen look like it’s flickering.
  • Fixed an issue which was causing some Insiders on the previous Beta Channel flight to have their PCs stuck on a black screen after waking from sleep.
  • Fixed an issue which would lead to losing network connectivity after turning on mobile hotspot.
  • Fixed an issue causing Build 22621.290 / 22622.290 to fail to install with error 0x800f081f for some Insiders.

Install Windows 11 build 22622.436 and 22621.436

If you want to download and install the Windows 11 update KB5015888, you need to enroll your device in the Beta Channel using the “Windows Insider Program” settings from the “Update & Security” section.

Once you enroll the computer in the program, you can download build 22622.436 or 22621.436 from the “Windows Update” settings by clicking the Check for Updates button. If the device receives build 22621.436, you can check again for updates to download build 22622.436.

About the author

Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 15 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 21 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and Email him at [email protected].