Summary. This update improves the Windows 11, version 22H2 and Windows 11, version 23H2 out-of-box experience (OOBE). This update applies only to the Windows 11 OOBE process and is available only when OOBE updates are installed.

An attacker who successfully exploited the vulnerability might bypass secure boot and load untrusted software. This security update addresses the vulnerability by adding the signatures of the known vulnerable UEFI modules to the DBX. To learn more about this security vulnerability, see the following advisory:

Release Date: April 9, 2024. Version: .NET Framework 3.5, 4.7.2 and 4.8. Summary. 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. CVE-2024-21409 - .NET Framework Remote Code Execution Vulnerability.

Activate after reinstalling Windows 11. Reactivating Windows 11 after a hardware change. Activate Windows using a product key. A product key is a 25-character code, that looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. During installation, you'll be prompted to enter a product key.

An update is available for all Active Directory Rights Management Services (AD RMS) clients. This update prevents you from receiving error messages that are related to the application manifest expiry feature of the AD RMS clients. This fix is also necessary for Windows Rights Management clients.

Resolves a vulnerability in Windows DirectWrite that could allow denial of service if an attacker sends a specially crafted sequence of Unicode characters directly to an Instant Messenger client.

Windows 10, version 1607 Enterprise, Education, Pro, Home, and Pro for Workstation reached the end of support on January 10, 2023. These editions will no longer be offered servicing stack updates. Windows 10 Enterprise N 2016 LTSB and Windows 10 IoT Enterprise 2016 LTSB will reach end of support on October 13, 2026.

The April 9, 2024 update for Windows 10, version 1809 and Windows Server 2019 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.7.2. We recommend that you apply this update as part of your regular maintenance routines.

This article describes an issue that occurs when a disk resource name contains unauthorized file system characters in a Windows Server 2012 R2 or Windows Server 2008 R2-based failover cluster. A hotfix is available to resolve this issue.

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component.