In what marks the top of an period, Microsoft has launched the Home windows 10 KB5066791 cumulative replace, the ultimate cumulative replace for the working system because it reaches the top of its help lifecycle.
It ought to be famous that customers will nonetheless be capable to obtain prolonged safety updates (ESUs) for as much as 1 12 months (customers) and three years (enterprise).
The Home windows 10 KB5066791 replace is obligatory, because it incorporates Microsoft’s October 2025 Patch Tuesday safety updates, which deal with six zero-day vulnerabilities and 172 different flaws.
Home windows customers can set up this replace by going into Settings, clicking on Home windows Replace, and manually performing a ‘Verify for Updates.’
Nonetheless, as this replace is obligatory, it can routinely begin putting in in Home windows when you test for updates. To make this extra manageable, you may schedule a time when your laptop is restarted to complete the set up.
Supply: BleepingComputer
After putting in this replace, Home windows 10 22H2 will be up to date to construct 19045.6456, and Home windows 10 21H2 shall be up to date to construct 19044.6456.
Home windows 10 customers may also manually obtain and set up the KB5066791 replace from the Microsoft Replace Catalog.
What’s new in Home windows 10 KB5066791
Home windows 10 has formally reached finish of help at the moment, now not receiving updates except prospects and organizations subscribe to prolonged safety updates.
“After October 14, 2025, Microsoft will now not present free software program updates from Home windows Replace, technical help, or safety fixes for Home windows 10,” warns Microsoft.
“Your PC will nonetheless work, however we suggest transferring to Home windows 11.”
Customers can enroll in prolonged safety updates to obtain a 12 months of extra safety updates, whereas the enterprise should purchase as much as three years of prolonged updates.
Nonetheless, Home windows 10 customers within the EMEA are in a position to get free prolonged safety updates for one 12 months.
The whole record of modifications and fixes within the Home windows 10 KB5066791 replace is listed under:
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[Input and Composition]
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Fastened: A problem with the Chinese language Enter Technique Editor (IME). Non-public Unicode characters had been proven incorrectly and didn’t meet GB18030 commonplace.
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Fastened: A problem that impacts USER32 Edit controls. Surrogate pairs seem as empty bins when textual content fields attain their size restrict.
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[Windows Remote Management (WinRM)]
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[Licensing]
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New! This replace introduces a servicing stack replace (SSU) which contains an up to date certificates chain to enhance Azure setting validation. For extra info, see the servicing stack replace part.
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[Fax modem driver]
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[SMBv1 protocol connectivity (known issue)] Fastened: A problem the place you won’t be capable to connect with shared information and folders if you happen to’re utilizing the Server Message Block (SMB) v1 protocol on NetBIOS over TCP/IP NetBIOS (NetBT). This will occur after putting in replace KB5065429.
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[Autopilot Enrollment Status Page (ESP) (known issue)] Fastened: A problem when utilizing Home windows Autopilot to deploy Home windows 10, model 22H2, to gadgets with the Enrollment Standing Web page (ESP) configured would possibly discover that the ESP would not load in the course of the Out-of-Field Expertise (OOBE).
An entire record of fixes will be discovered within the KB5066791 help bulletin and final month’s KB5066198 preview replace bulletin.
Microsoft states that there are not any identified points with this replace as Microsoft ends its help for the working system.
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