The January 28, 2025 update for Windows 11, version 24H2 includes cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines.

For a limited time after upgrading Windows, you have the option to go back to the previous version you had installed. This can be useful if you encounter issues with the new version, such as compatibility problems with your software or hardware, or if you simply prefer the way things worked before.

The January 28, 2025 update for Windows 10 Version 22H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines.

This article describes the security and cumulative update for 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019. Security Improvements. This security update addresses a remote code execution vulnerability detailed in CVE-2025-21176. Quality and Reliability Improvements.

To install this update, use one of the following release channels. This update is available through Windows Update. It will be downloaded and installed automatically. To get the standalone package for this update, go to the Microsoft Update Catalog website.

Following the installation of the October 2024 security update, some customers report that the OpenSSH (Open Secure Shell) service fails to start, preventing SSH connections. The service fails with no detailed logging, and manual intervention is required to run the sshd.exe process.

It is now in the Windows 11, version 24H2 article. This update addresses security issues for your Windows operating system. Note: To view the list of addressed issues, click or tap the OS name to expand the collapsible section. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.

Customers can temporarily resolve the issue by updating permissions (ACLs) on the affected directories. Follow these steps: Open PowerShell as an Administrator. Update the permissions for C:\ProgramData\ssh and C:\ProgramData\ssh\logs to allow full control for SYSTEM and the Administrators group, while allowing read access for Authenticated Users.

To install the latest Monthly Rollup released on or after January 14, 2025, you must first install the latest Servicing Stack Update (SSU). Caution: Until you install the latest SSU, this update will not be offered to your device. To reduce your security risk, install the SSU as soon as possible.

Windows Server is the operating system that bridges on-premises environments with Azure services enabling hybrid scenarios and maximizing existing investments, including: For more information about Microsoft Windows Server plans and pricing please see the Azure Marketplace.