
Security
Microsoft Proactively Rotates Secure Boot Certificates Ahead of 2026 Expiration
2/11/2026

Security
Microsoft Preemptively Replaces Secure Boot Certificates to Prevent 2026 Expiration Crisis
2/10/2026

Vulnerabilities
Microsoft releases emergency OOB update to fix Outlook freezes
1/25/2026

Security
Microsoft Addresses Outlook Freezes After Windows Update: Workarounds and Technical Context
1/21/2026

Vulnerabilities
Microsoft's January Windows Update Freezes Outlook When Saving to OneDrive
1/21/2026