We’re recently shown you all the details surrounding Windows Server Build 25158, and also informed you that Windows Server 20H2 will reach the end of support next month, August 2022. Now, however, it’s time to focus on Windows Server 2022 for a few minutes and talk about KB5015879 and all the changes it brings.

What does KB5015879 bring to Windows Server 2022?

The Redmond tech giant known as Microsoft has released the July 2022 cumulative update for Windows Server 2022, bringing the OS build to 20348.859, via KB5015879. Please keep in mind that the update is a C release, which means it’s a non-security update and brings improvements to the operating system. And, just like the latest Windows 10 Release Preview Build KB5015878, the new Server 2022 update boosts input-output operations per second (IOPs). Don’t go thinking that’s all it does, because it also fixes bugs like the one which was causing Windows to freeze due to Defender. Let’s have a look at the changelog and discover together all the tweaks, improvements, and known issues that come with this most recent update.

Improvements and Fixes

Improves the reliability of a push-button reset after an OS upgrade. Addresses an issue that makes the tenant restrictions event logging channel inaccessible if you remove the EN-US language pack. Updates the Remove-Item cmdlet to properly interact with Microsoft OneDrive folders. Addresses an issue that prevents certain troubleshooting tools from opening. Addresses an issue that causes port mapping conflicts for containers. Addresses an issue that causes Code Integrity to continue trusting a file after the file has been modified. Addresses an issue that might cause Windows to stop working when you enable Windows Defender Application Control with the Intelligent Security Graph feature turned on. Addresses an issue that triggers lockout policies faster when you use Remote Desktop Protocol (RDP) with fast reconnect and Network Level Authentication (NLA) is disabled. This issue occurs when you call LogonUser() with a blank password. Provides the option to configure an alternate login ID for an Azure Multi-Factor Authentication (MFA) Active Directory Federation Services (AD FS) adapter for on-premises scenarios. You can disable the alternate login ID as required. To configure the Azure MFA ADFS adapter to ignore an alternate login ID, run the following PowerShell command: Set-AdfsAzureMfaTenant -TenantId ‘’ -ClientId ‘’ -IgnoreAlternateLoginId $true.To restart the ADFS service on each server in the farm, use the Restart-Service adfssrv PowerShell command.By default, the adapter configuration will not ignore alternate login ID (IgnoreAlternateLoginId = $false) unless explicitly set to $true as in the command above. Reduces the overhead of resource contention in high input/output operations per second (IOPS) scenarios that have many threads contending on a single file. Addresses an issue that prevents the Storage Migration Service (SMS) from completing inventory on servers that have many shares. The system logs error event 2509 in Microsoft-Windows-StorageMigrationService/Admin channel (ErrorId=-2146233088/ErrorMessage=”Invalid table id”). Addresses an issue that causes 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.

As you can see, there were quite some issues that needed to be addressed, and Microsoft did so through this recent Windows Server 2022 update.

Known issues

There you go, all the changes coming to Windows Server 2022 via KB5015879. Share with us in the comments section if you found any issues after installing it.

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