Microsoft has released Windows 10 KB5120249 Extended Security Updates for versions 22H2 and 21H2 to fix security vulnerabilities and bugs.

Microsoft has released the August 2026 Patch Tuesday cumulative updates for Windows 10 under KB5120249.

Microsoft has released Patch Tuesday updates KB5121003, KB5120240, and KB5121000 for Windows 11 for August 2026. Here's what's included: