How to check your Windows PC for expiring security certificates - a big one ends in June

📰 ZDNet

Check your Windows PC for expiring security certificates before a critical expiration date next month

intermediate Published 18 May 2026
Action Steps
  1. Check your Windows PC's security certificates using the Microsoft Management Console
  2. Run the command 'mmc' in the Run dialog box to open the Microsoft Management Console
  3. Navigate to the 'Certificates' section to view expiring certificates
  4. Configure automatic updates to ensure your PC receives the latest security patches
  5. Test your PC's security settings to ensure they are up to date
Who Needs to Know This

IT and cybersecurity teams should take immediate action to ensure their organization's Windows PCs are prepared for the upcoming expiration date

Key Insight

💡 A major security certificate is set to expire in June, affecting over a billion Windows PCs and some Linux distros

Share This
🚨 Critical Windows expiration date approaching! Check your PC's security certificates now 🚨
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