The End of Support Calendar shows Microsoft Operating Systems end of support dates, whether they are the end of mainstream support that updates features and cosmetic changes, or extended support, which ends security fixes and all Microsoft technical support other than old web pages.
Windows 10 Security Updates end October 14, 2025
Event Information:
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Tue13Jun2023
Windows 10, version 21H2 (second half of 2021) End of Service
The 21H2 release of Windows 10, available November 16th of 2021, reaches end of service for Home, Pro, Pro Education, and Pro for Workstations on June 13th, 2023. As of November 2021, Windows 10 switched to an annual release schedule for feature updates, to match the Windows 11 schedule.