Microsoft has warned users about a bug related to the creation of Windows 11 installer media that may prevent future security updates for new PC installations. The issue affects installations using media created with the October and November 2024 security updates, specifically when the media is made between October 8, 2024, and November 12, 2024. Systems that received these updates via Windows Update or the Microsoft Update Catalog are not impacted. To resolve the issue, users must rebuild their Windows 11 media installers to include the December 2024 patch update and perform a fresh installation. Additionally, the Windows 11 24H2 update has introduced other bugs, including problems with certain audio devices, launching Outlook with outdated Google Workspace Sync, and compatibility issues with some Ubisoft games.