Microsoft released the first official update after the final release of Windows 11.

Update KB5006674 will bring your OS up to Build 22000.258. This update comes with the following changes or fixes:


  • Updates security for your Windows operating system.

Changed, or Fixed in Windows 11 KB5006674 Update

  • Addresses known compatibility issues between some Intel “Killer” and “SmartByte” networking software and Windows 11 (original release). Devices with the affected software might drop User Datagram Protocol (UDP) packets under certain conditions. This creates performance and other issues for protocols based on UDP. For example, some websites might load slower than others on the affected devices, which might cause videos to stream slower in certain resolutions. VPN solutions based on UDP might also be slower.