For anyone signed up to the Extended Security Updates program, Microsoft has released a new Windows 10 update. With mainstream support for Windows 10 having come to an end, the days of new features being added to the operating system are over; this is an update that focuses solely on addressing problems.
The KB5075912 update is available for Windows 10 21H2 and Windows 10 22H2 and – as yet – there are not known to be any unwanted side effects associated with installing it.
The release notes for updates which include only fixes and no new features are shorter than usual. The fixes that Microsoft has shared details of are as follows:
- [Fonts] This update includes changes to Chinese fonts to meet GB18030-2022A compliance.
- [OS Security (known issue)] Fixed: After installing the Windows security update released on or after January 13, 2026, some Secure Launch-capable PCs with Virtual Secure Mode (VSM) enabled are unable to shut down or enter hibernation. Instead, the device restarts.
- [Folders] Fixed: This update fixes an issue that affects folder renaming with desktop.ini files in File Explorer. The LocalizedResourceName setting was ignored, so custom folder names did not show. Now, custom folder names appear as expected.
- [Graphics] Fixed: A stability issue affecting certain graphics processing units (GPUs) configurations.
- [Secure Boot] With this update, Windows quality updates include a broad set of targeting data that identifies devices and their ability to receive new Secure Boot certificates. Devices will receive the new certificates only after they show sufficient successful update signals, which helps ensures a safe and phased rollout.
Microsoft also notes that this scheduled update includes a trio of out-of-band updates that it was forced to release last month. Those bundled emergency fixes are:
- January 13, 2026—KB5073724 (OS Builds 19045.6807 and 19044.6807)
- January 17, 2026—KB5077796 (OS Builds 19045.6811 and 19044.6811) Out-of-band
- January 24, 2026—KB5078129 (OS Builds 19045.6812 and 19044.6812) Out-of-band
In the release notes, Microsoft also continues to issue its Windows Secure Boot certificate expiration warning:
Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and preparation steps, see Windows Secure Boot certificate expiration and CA updates.
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