Microsoft has issued a critical security warning for the nearly one billion Windows 10 users still operating on the outdated system. Despite official support ending in October 2025, a significant number of devices remain vulnerable, and a new deadline is fast approaching: June 2026. This is when core Secure Boot certificates expire, leaving computers open to malware and exploits.
The Core Issue: Expiring Security Certificates
The expiring certificates are fundamental to verifying the integrity of software loaded during startup. Without valid certificates, machines cannot reliably confirm that they’re running secure code. Microsoft is offering two primary solutions: upgrading to Windows 11 or enrolling in the Extended Security Updates (ESU) program.
Why this matters: Expired security certificates are a backdoor for attackers. They bypass the normal protections of Windows, making devices easy targets. The widespread use of Windows 10 means this is a large-scale risk, not just a niche problem.
Extended Security Updates: A Temporary Fix
Microsoft will provide one final year of security updates for Windows 10, extending protection until October 13, 2026. Users can enroll in the ESU program to continue receiving updates beyond that date, but it is designed as a short-term measure. The program is not a replacement for upgrading to a supported operating system.
- The ESU program costs $30 per user outside of Europe, where it is currently free.
- Users can also enroll for free by backing up Windows settings to OneDrive or redeeming 1,000 Microsoft Rewards points.
Enrollment Process: How to Stay Protected
To enroll in ESU, users must first ensure they are running the latest version of Windows 10 (22H2). Then, through Windows Update, they can access the enrollment wizard. The process requires administrative privileges.
Step-by-step:
- Check your Windows version in Settings.
- Confirm the latest updates are installed via Windows Update.
- Navigate to the Extended Security Updates enrollment link within Windows Update.
- Choose between paying, using Microsoft Rewards, or backing up settings to OneDrive.
Despite Microsoft’s announcement, the enrollment wizard is not yet available to all eligible users. The rollout is ongoing, and some devices may not display the option immediately. Microsoft confirms it is working to restore availability in affected markets.
The Free Options: OneDrive Backup and Rewards Points
For users seeking free ESU access, backing up settings to OneDrive is the most viable option. However, Microsoft’s free 5GB of storage may be insufficient for some users, potentially requiring a paid OneDrive subscription. The alternative, redeeming 1,000 Microsoft Rewards points, is also available but requires a significant investment in the Rewards program.
The Bottom Line
Windows 10’s end-of-life is rapidly approaching. While the Extended Security Updates program provides a temporary lifeline, upgrading to Windows 11 remains the long-term solution. Users must act decisively to avoid security vulnerabilities and ensure their devices remain protected. The urgency is real, and delaying action could have serious consequences.
