Dear DARIUS WU JUNYE,
Thank you for your question about Windows ESU.
- Based on Microsoft’s official documentation and lifecycle policy, October 13, 2026, is the official end date of the consumer ESU program itself. So if a customer enrolls close to October 2026, the security updates will only be provided until 13 October 2026.
- Additionally, after October 14, 2025, any refunds would follow our policy for digital purchases for your country. For complete details on how to return eligible products, see our Returns and Refunds page. *And if you enrolled in ESU at no additional cost by backing up your PC settings, you were not charged for ESU, so there would not be any refunds.
*For more information, please check out Windows 10 Consumer Extended Security Updates (ESU).
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Best regards,
Scott Nguyen