Microsoft has launched the KB5074105 preview cumulative replace for Home windows 11 methods, which incorporates 32 modifications, together with fixes for sign-in, boot, and activation points.
KB5074105 is an optionally available replace that delivers updates on the finish of every month, permitting admins to check Home windows bug fixes, new options, and enhancements that might be typically accessible throughout subsequent month’s Patch Tuesday launch.
Nonetheless, not like Patch Tuesday cumulative updates, month-to-month non-security preview updates solely roll out high quality enhancements and don’t embrace safety fixes.
With the January 2025 optionally available replace, Microsoft addressed a identified challenge that brought about Explorer.exe to hold through the first login when sure apps have been configured as startup apps.
It additionally mounted a bug that brought about the system to cease responding throughout startup when Home windows Boot Supervisor debugging is enabled, and one other bug that triggered iSCSI boot failures with an “Inaccessible Boot Gadget” error.
Moreover, this month’s preview replace addresses a problem during which Home windows license migrations may fail throughout upgrades as a result of the PC could not register with the Home windows Activation server for its digital license.
You’ll be able to set up KB5074105 by opening Settings, clicking on Home windows Replace, after which on ‘Examine for Updates.’ Since that is an optionally available replace, you’ll be prompted to put in it by clicking the ‘Obtain and set up’ hyperlink.
Nonetheless, you can even manually set up this optionally available cumulative replace after downloading it from the Microsoft Replace Catalog.
Home windows 11 KB5074105 highlights
As soon as put in, this optionally available non-security preview replace will replace Home windows 11 25H2 and 24H2 units to builds 26200.7705 and 26100.7705, respectively.
The January 2026 preview replace comes with additional enhancements and fixes, among the extra essential ones highlighted beneath:
- This replace expands the performance of Cross‑Gadget Resume. You’ll be able to proceed actions out of your Android telephone in your PC based mostly on the apps and providers you utilize, together with resuming Spotify playback, working in Phrase, Excel, or PowerPoint, or persevering with a looking session.
- Home windows Howdy Enhanced Signal-in Safety (ESS) now helps peripheral fingerprint sensors. This replace extends this safer sign-in possibility past units with built-in fingerprint sensors to incorporate desktops and different Home windows 11 PCs, together with Copilot+ PCs.
- [User Account Control (UAC)] Mounted: This replace addresses a problem the place your PC may cease responding when trying to run Home windows Terminal elevated from a non-admin account.
- [Graphics] Mounted: This replace addresses a problem the place sure GPU configurations might need just lately skilled a system error associated to dxgmms2.sys, ensuing within the KERNEL_SECURITY_CHECK_FAILURE error.
- [Windows Sandbox] Mounted: This replace addresses a problem that would trigger Home windows Sandbox to cease responding throughout startup and show error 0x800705b4.
In a separate message heart replace, Microsoft added that Home windows 11 and Home windows Server 2025 updates will get separate identifiers to keep away from confusion.
“Beginning with the January 2026 safety replace, Home windows Server 2025 has its personal KB identifiers and construct numbers, separate from Home windows 11, variations 24H2 and 25H2,” Microsoft stated. “This variation improves readability for directors. Set up and administration processes stay the identical.”
Beginning this month, Microsoft has additionally adopted simplified titles for Home windows updates, making replace info simpler to know by eradicating pointless technical parts resembling platform structure.
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