emergency updates Archives

Winsage

June 17, 2025

Microsoft Confirms Windows Upgrade Choice—100 Day Deadline Nears

A flaw in Windows 11 related to update KB5063060 is causing installation failures for many users, particularly in the gaming community, with error codes such as 0x800f0922, 0x80070002, 0x80070306, and 0x800f0991. Microsoft has announced an additional upgrade option for at least 240 million users still on Windows 10, as support will be withdrawn in just over 100 days. A new PC-to-PC migration experience is being rolled out to help users transfer files and settings during setup, and a Windows Migration feature integrated within the Windows Backup tool is being tested to assist those unable to upgrade due to hardware limitations. This feature is currently hidden in the latest release preview build but can be activated with a specific feature ID.

Winsage

June 16, 2025

Microsoft: June Windows Server security updates cause DHCP issues

Microsoft has identified an issue with the June 2025 security updates that causes the Dynamic Host Configuration Protocol (DHCP) service to freeze on certain Windows Server systems. This affects the service's ability to apply renewals of unicast IP addresses, impacting network operations. Microsoft has acknowledged that the DHCP Server service may intermittently stop responding after the update and is working on a resolution. Additionally, other issues affecting Windows Server systems have been addressed, including application failures and authentication problems on domain controllers. Out-of-band updates were previously issued to fix bugs causing Hyper-V virtual machines to restart or freeze, and emergency updates were released for issues with Windows containers on certain Windows Server versions.

Winsage

June 11, 2025

Microsoft fixes Windows Server auth issues caused by April updates

Microsoft has resolved an authentication issue that arose after the April 2025 security updates on Windows Server domain controllers, primarily affecting Windows Server 2016, 2019, 2022, and 2025. The problem, acknowledged in early May, involved difficulties with Kerberos logons or delegations reliant on certificate-based credentials due to the April monthly security update (KB5055523). This issue could lead to authentication failures in environments using Windows Hello for Business Key Trust or Device Public Key Authentication, impacting various software solutions. Microsoft released cumulative updates to fix these issues and recommended installing the latest security updates. For those still facing problems, a temporary registry adjustment was advised. The authentication issues were linked to security enhancements addressing a high-severity vulnerability (CVE-2025-26647) that could allow privilege escalation through an input validation flaw in Windows Kerberos. Microsoft had previously addressed related authentication issues in April and issued emergency updates in November 2022 for Kerberos sign-in failures affecting Windows domain controllers.

Winsage

May 27, 2025

Windows Server emergency update fixes Hyper-V VM freezes, restart issues

Microsoft has released an emergency update, KB5061906, to address unexpected freezes and restarts affecting Hyper-V virtual machines on Windows Server 2022, particularly Azure confidential VMs. This cumulative out-of-band update resolves a critical issue in the direct send path for guest physical addresses, which could cause these VMs to stop responding or restart. The update is not automatically installed and must be manually downloaded from the Microsoft Update Catalog. Standard Hyper-V deployments are largely unaffected, with rare exceptions. Organizations using Windows Server 2022 with Hyper-V should apply this update if they have not yet deployed the May 2025 Windows security update (KB5058385).

Winsage

April 17, 2025

New Windows Server emergency updates fix container launch issue

Microsoft released emergency updates for Windows Server to address startup failures in containers operating under Hyper-V isolation mode, caused by compatibility issues with the 2025.04 B container images. The updates enhance access to essential system files from the Windows Server host, improving compatibility and reliability. These out-of-band updates for Windows Server 2019, 2022, and 2025 must be manually downloaded from the Microsoft Update Catalog, as they will not be delivered through Windows Update. This update follows previous challenges, including authentication issues and boot problems caused by earlier security updates for Windows Server 2019 and 2022.