Enhanced key features and bug fixes.

October 11, 2022—KB5018427 (OS Build 22621.674)
Release Date: 10/11/2022
Version: OS Build 22621.674

This update includes the security improvements and enhancements released in KB5017389 (from September 30, 2022). Notably, it addresses security flaws in Windows to enhance system safety.

Highlights:

• Fixes Windows security flaws to ensure safer usage.

Improvements:

• Security issues affecting internal OS functionality have been addressed.
• No new issues were found during this update’s testing phase.

If you’ve already updated, this package will bring your device to the latest version.

For further details on security flaws, refer to the Security Update Guide and the October 2022 Security Updates.

Note: Follow @WindowsUpdate to stay updated on the latest Windows release health information.

Update to the Windows 11 Support Toolset, Build 22000.378

This update includes an improved servicing stack (SSU), which is responsible for installing Windows updates. Ensuring your SSU is up-to-date is essential for your devices to receive and install future Microsoft updates.

Concerns with This Update:

Symptom:

• Provisioning Packages on Windows 11 22H2: There may be issues where Windows 11 (2022 Update) doesn’t fully set up, causing the Out of Box Experience (OOBE) to crash or restart unexpectedly. This is most likely to affect provisioning packages (PPKG files) applied during initial setup. Provisioning packages are often used for setting up hardware in institutional networks.

  Workaround:

  • The Windows Autopilot tool remains unaffected by this issue.
  • Home or office computers are unlikely to be impacted by this issue.
  • To avoid this problem, provision devices before upgrading to Windows 11, version 22H2.

  Investigation:
  Microsoft is investigating this issue and will provide updates in the future.

Symptom:

• File Transfer Delays: Files larger than a few GB may take longer to copy than usual, especially when transferring files from a network share (via SMB) or locally on Windows 11 build 22H2.

  Impact:

  • Household or office computers are less likely to experience this problem. However, transfers over SMB are most likely to be affected.

File Copy Tools and Workaround for Delayed Transfers:

To alleviate file transfer delays, it is recommended to use file copy tools that don’t rely on a cache manager (buffer I/O). The following command-line utilities can help:

• Robocopy: 

  • robocopy someserver\someshare c:\folder\filename.img /J
    

• Xcopy:
  • xcopy someserver\someshare c:\folder /J

These tools bypass certain bottlenecks in file copying, which can help speed up large file transfers.

Investigating Solutions:

Microsoft is actively investigating solutions to address this issue, with updates expected in the near future.

Procedure for Obtaining the New Version:

To stay updated, Microsoft’s most recent servicing stack update (SSU) is included in the latest cumulative update (LCU). For more information on SSUs, check out the FAQ on Servicing Stack Updates (SSUs).

What to Do Next:

To update to the latest version:

• Visit Windows Update, and the update will be automatically downloaded and installed.
• Ensure your system is up-to-date with the latest patches and updates.

Automatic Update Installation:

As per the guidelines, this update will automatically be downloaded and installed through Windows Update.

Standalone Update Package:

For users who prefer manual installation, the update can be downloaded from the Microsoft Update Catalog.

Windows Server Update Services (WSUS):

For Windows Server setups, if Products and Classifications are configured properly, WSUS will automatically download and install the update.

Uninstalling the LCU:

If you wish to remove the LCU (Latest Cumulative Update) after installing both the SSU (Servicing Stack Update) and LCU package, you can use the following command: DISM /online /get-packages

This will list the installed packages. Once you identify the LCU package name, you can uninstall it with:

DISM /online /Remove-Package /PackageName:<LCU Package Name>

Note that SSU cannot be uninstalled using Windows Update Standalone Installer (wusa.exe). Once installed, the SSU is permanent.

File Information:

For detailed information about the files included in the cumulative update (KB5018427), you can download the file information from the update’s download page.

Likewise, you can find the specific details of the SSU version 22621.378 by downloading its file information.