Microsoft has released the Windows 10 KB5094127 extended security update, which fixes the June 2026 Patch Tuesday vulnerabilities and adds new functionality to monitor the rollout of updated Secure Boot certificates that replace those expiring this month.

Microsoft officially confirms that upcoming Windows 11 and Windows 10 Patch Tuesday releases will cease offering Defender security updates entirely. Here's why.

Microsoft has released Patch Tuesday updates for Windows 11 KB5094126 for June 2026. Here's what's included.