Microsoft has rolled out an emergency out-of-band update to address issues from its September Patch Tuesday update, which affected nearly 1,000 vulnerabilities and caused bugs in folder shares on Hyper-V-based Linux virtual machines, Remote Desktop Services sessions, and certain USB audio devices. The new update targets multiple versions of Windows 11 (26h1, 25H2, and 24H2) and also includes updates for Windows Server 2025, 2022, and LTSC versions of Windows 10 and Windows Server 2012 and 2012 R2. In 2023, Microsoft has increasingly issued out-of-band updates, including four in January, two in March, and one in July, to resolve various issues.