Microsoft has released the KB5065429 cumulative update for Windows 10 22H2 and Windows 10 21H2, with fourteen fixes or changes, including fixes for unexpected UAC prompts and severe lag and stuttering issues with NDI streaming software.

The Windows 10 KB5065429 update is mandatory as it contains Microsoft’s September 2025 Patch Tuesday security updates, which fix two publicly disclosed zero-day vulnerabilities and 81 flaws.

Windows users can install this update by going into Settings, clicking on Windows Update, and manually performing a ’Check for Updates.’