Microsoft ships KB5126657 for Windows 10 extended security users
The update is available to Windows 10 users enrolled in the Extended Security program as part of October 2026 Patch Tuesday. According to BleepingComputer, it includes the month's security fixes alongside a few bug fixes and changes; the publication describes this month's Patch Tuesday fixes as record-breaking.
Covered by 2 publishers within 1 hour of the first report.
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BleepingComputer Microsoft releases Windows 10 KB5126657 extended security update · Lawrence Abrams
Neowin Windows 10 KB5126657 Patch Tuesday update is now available · Ivan Jenic