Windows PCs missing key updates could lose security fixes in 2027

October 12, 2026 · 7:39 am 4 sources

Image: Help Net Security

Coverage

Coverage

• Windows PCs missing key updates could lose security fixes in 2027
  Help Net Security · October 12, 2026 07:39
  Microsoft is advising users and businesses to update Windows devices before digital certificates used to verify Windows Update servers expire in May and June 2027. The certificates expire on May 17 or June 19, depending on the Windows version. Devices without replacement certificates will lose…
• Microsoft: Windows 11 23H2 reaches end of support in 30 days
  BleepingComputer · October 12, 2026 11:58
  Microsoft has reminded customers that systems running Windows 11 23H2 Enterprise, Education, and IoT Enterprise editions will stop receiving security updates next month. [...]
• Microsoft: Windows 11 24H2 Home and Pro reached end of support
  BleepingComputer · October 13, 2026 19:04
  Microsoft announced today that devices running Windows 11 24H2 Home and Pro editions have reached the end of support and will no longer receive monthly security and non-security preview updates. [...]
• Microsoft releases Windows 10 KB5126657 extended security update
  BleepingComputer · October 13, 2026 19:47
  Microsoft released the Windows 10 KB5126657 extended security update, which includes this month's record-breaking October 2026 Patch Tuesday fixes and a few bug fixes and changes. [...]