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May 12, 2026—KB5089549 (OS Builds 26200.8457 and 26100.8457) (opens in new tab)

Covered by 14 sources including PC CHIP, BleepingComputer

Covered in 15 articles

BleepingComputer·

Windows 11 KB5095093 update rolls out new Point-in-Time restore feature

Help Net Security·

June 2026 Patch Tuesday forecast: Where are the CVEs?

Microsoft confirms Windows 11 KB5089549 fails install, shares workarounds

Windows 11 SecureBoot folder: PowerShell scripts explained

Microsoft brings Point-in-Time restore feature to Windows 11 with KB5095093 update

Windows Latest·

Microsoft confirms the new Secure Boot folder in Windows 11 isn’t a bug, you don’t need to delete it

Windows Latest·

Microsoft confirms Windows 11 KB5089549 issues due to low storage, says it’s rolling out an emergency patch to fix install errors

Petri IT Knowledgebase·

Windows 11 May 2026 Security Update Fails on Low Boot Partition Space

In other languages

Nova SecureBoot mapa u Windowsima 11 nije malware. Evo čemu služi

Microsoft corrige enfin le bug qui faisait disparaître le bureau de Windows 11

Borns IT- und Windows-Blog·

Windows 11 24H2 – 25H2: Preview Update KB5089573 (23. Juni 2026)

Windows 11 hat plötzlich einen neuen Ordner – darum solltet ihr ihn nicht löschen

lesnumeriques.com·

Windows 11 : la grande mise à jour de mai plombe le Wifi et coince des milliers de PC

landiannews.com·

[无需删除] Windows 11安装更新后会新增SecureBoot文件夹用于更新启动证书

Обновление Windows 11 KB5089549 создаёт новую папку SecureBoot, но Microsoft называет это нормальным