Windows End of Support Calendar

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.

Security updates for Microsoft Office 2021 end October 13, 2026.

Event Information:

  • Thu
    15
    Jan
    2026

    Backblaze Ends 32-bit Windows Support

    Backblaze, the cloud backup company, is ending support on January 15th for the 32-bit version of Windows 10, and several older operating systems:

      Windows:
      Windows 7 (32-bit and 64-bit)
      Windows 8 (32-bit and 64-bit)
      Windows 10 (32-bit)
      Mac OS X:
      Mavericks 10.9.x
      Yosemite 10.10.x
      El Capitan 10.11.x
      Mac OS X Server
      Mac OS
      Sierra 10.12.x

    'Ending support' does not mean the service turns off. It means they aren't testing Backblaze on that operating any longer, and yes, you really should be upgrading that computer.