Microsoft Software Updates

Windows 10: A guide to the updates

What you need to know about each update to Windows 10 as they roll out from Microsoft. Now updated for KB4074588, released Feb. 13, 2018.

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Microsoft Software Updates

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The launch of a big Microsoft Windows 10 update like the Fall Creators Update isn’t the end of a process — it’s really just the beginning. As soon as a major update is released, Microsoft quickly gets to work on improving it by fixing bugs, releasing security patches, and occasionally adding new features.

Here we’ve summarized what you need to know about every Windows 10 update being released to the public. First come updates to the currently shipping version of Windows 10 — version 1709, known as the Fall Creators Update — with the most recent updates on top. (Note that the Fall Creators Update is on a phased rollout, so you may not have received it yet.) Below that are updates to version 1703, known as the Creators Update. For each build, we’ve included the date of its initial release and a link to Microsoft’s announcement about it.

Note: If you're looking for information about Insider Program previews for the next major release of Windows 10, code-named Redstone 4, see "Windows 10 Redstone: A guide to the builds." And if you’re still using an earlier version of Windows, see the Microsoft support site for details about updates to Windows 7, Windows 8.1 and Windows 10 version 1607 / Windows Server 2016.

KB4074588 (OS Build 16299.248)

Release date: February 13, 2018

This February 2018 “Patch Tuesday” update fixes a wide variety of bugs, adds no new features and offers a several security updates. Among other bugs handled, it fixes an issue in Internet Explorer where pressing the delete key inserted a new line in input boxes in an application. It also updates time zone information and fixes a bug that caused delays when switching keyboard languages using Alt+Shift. There are a number of known issues with the update, including one in which Windows Update History incorrectly reports that KB4054517 failed to install. 

The patch also includes security updates to Microsoft Scripting Engine, Microsoft Edge, Internet Explorer, Microsoft Windows Search component, Windows Kernel, Windows Authentication, Device Guard, Common Log File System driver, and the Windows storage and file systems.

What IT needs to know: Because this is a security update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB4074588.)

KB4058258 (OS Build 16299.214)

Release date: January 31, 2018

This minor non-feature update fixes a variety of minor bugs, including one in which colors are distorted when the system is connected to displays that support the wide color gamut, and another in which delays are caused when switching keyboard languages using Alt+Shift. The update also includes unnamed security protections for 32-bit (x86) versions of the Windows 10 Fall Creators Update. There are several known issues with the update, including that after its installation, “Windows Update History reports that KB4054517 failed to install because of error 0x80070643.”

(Get more info about KB4058258.)

KB4073291 (OS Build 16299.201)

Release date: January 18, 2018

This update is only for PCs with the 32-bit (x86) version of Windows 10 1709 that have already installed the January 3, 2018 update (KB4056892, OS Build 16299.192). Microsoft has provided no information about this update beyond a list of files that are in it (CSV download) and that it “provides additional protections for 32-Bit (x86) version of Windows 10 1709.” However, it notes that there are a number of known issues with the update, including that “Windows Update History reports that KB4054517 failed to install because of Error 0x80070643.”

(Get more info about KB4073291.)

KB4056892 (OS Build 16299.192)

Release date: January 3, 2018

This update fixes a variety of minor bugs, including one in which event logs stop receiving events when a maximum file size policy is applied to the channel. It also fixes several Microsoft Edge-related issues including one in which printing an Office Online document in Microsoft Edge fails and another in which Microsoft Edge stops responding for up to 3 seconds while displaying content from a software rendering path.

Also included are security updates for Internet Explorer, Microsoft Edge, Windows 10, .NET Framework and more. For details see the January 2018 Security Updates Release Notes.

What IT needs to know: Because this is a security update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB4056892.)

KB4054517 (OS Build 16299.125)

Release date: December 12, 2017 

This update fixes a variety of minor bugs, including one in which Windows Defender Device Guard and Application Control block some applications from running, even in Audit-Only Enforcement Mode. It also fixes a variety of issues with updating time zone information.

Also included are 34 security updates to the Microsoft Scripting Engine, Microsoft Edge and Windows Server. The most notable of them are fixes to two remote code execution bugs in the Microsoft Malware Protection Engine. For details about the two remote execution bugs, see CVE-2017-11937 and CVE-2017-11940.

What IT needs to know: Because this is a security update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB4054517.)

KB4051963 (OS Build 16299.98)

Release date: November 30, 2017

This minor, non-feature update includes a variety of bug fixes. It addresses several problems with Internet Explorer, including a script-related issue that caused the browser to stop working in some cases, and another in which forms submissions didn’t work properly. It also fixed performance problems when users run full-screen Microsoft DirectX 9 games and applications. And it fixes an issue in which user selections for Feedback Frequency in Settings > Privacy > Feedback & diagnostics weren’t saved.

(Get more info about KB4051963.)

KB4048955 (OS Build 16299.64)

Release date: November 14, 2017

This first “Patch Tuesday” release for the Fall Creators Update contains no new features, but has a variety of bug fixes and security patches. It fixes a problem that caused the Mixed Reality Portal to stop responding on launch and one where black screens appeared when switching between windowed and full-screen modes when playing some Microsoft DirectX games. It also fixes an issue in which application tiles were missing from the Start menu. A variety of other problems have been solved as well.

Fifty-three security vulnerabilities have also been also fixed, with 20 of them rated as critical. Security holes have been patched throughout Windows, including in Internet Explorer, Microsoft Edge, Windows, Microsoft Office, ASP.NET Core, and Chakra Core.

What IT needs to know: Because this is a security update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB4048955.)

KB4043961 (OS Build 16299.19)

Release date: October 17, 2017

This very minor, non-feature update addresses only a few small issues, including a bug in which, after apps are removed, they're reinstalled on every restart, logoff and login. There are also security updates to Windows kernel-mode drivers, Microsoft Graphics Component, Internet Explorer, Windows kernel, Microsoft Windows Search Component, Windows TPM, Windows NTLM, Device Guard, Microsoft Scripting Engine, Windows Wireless Networking, Microsoft Windows DNS, Windows Server, Microsoft JET Database Engine, and the Windows SMB Server.

What IT needs to know: Because this is a security update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB4043961.)

Windows 10 Fall Creators Update (version 1709)

Release date: October 17, 2017

Version 1709, called the Windows 10 Fall Creators Update, is the most recent major update to Windows 10. Here’s a quick summary of what’s new for users in it. (For more details, see our full review.)

  • OneDrive gets a new feature called Files On-Demand that gives you access to all of your OneDrive files on every device, without having to download them first. You’ll be able to see all the files you have in OneDrive, even if they’re only in the cloud and not on your PC. Icons tell you which are local and which are in the cloud. Just open the file, and if it’s not on your PC, it gets downloaded.
  • The new My People feature lets you pin three contacts to the Windows taskbar and then communicate with them instantly without having to open a separate app such as Skype or Mail. You can also click to see a list of all communications between them and you at a glance.
  • You can now send web links from your iOS or Android device to your PC and have them open in Microsoft Edge.
  • Cortana gets several new features, including displaying results in a scrollable flyout panel, so you don’t have to launch a web browser.
  • Microsoft Edge gets some minor improvements, including better Favorites handling and the ability to mark up PDFs and e-books.
  • Security has been beefed up, including the addition of Windows Defender Exploit Guard, which includes intrusion rules and policies to protect against a variety of threats, notably zero-day exploits. A new anti-ransomware feature called Controlled Folder Access has also been added; it lets only approved apps have access to Windows system files and folders.
  • New privacy features include the ability to review the kinds of devices and services apps from the Microsoft Store want access to before you download them.
  • The update incorporates Microsoft’s new design system and guidelines, called Fluent Design. Overall, transitions are smoother, and there are subtle changes to the transparency effect.

What IT needs to know: IT staff should be aware of these features that are new in the Windows 10 Fall Creators Update:

  • The notoriously insecure SMBv1 networking protocol, exploited in recent ransomware attacks including WannaCry and Petya, won’t be included on clean installs of the Windows 10 Fall Creators Update, but SMBv1 components will remain if you do in-place upgrades on PCs that already have the component installed.
  • Windows Defender Advanced Threat Protection (ATP), a suite of tools introduced in Windows 10 that helps enterprise customers protect their users and networks against threats and respond to attacks, is being beefed up. Among other things, it will run on the Windows Server OS.
  • ATP is also part of Windows Defender Application Guard for Microsoft Edge, available only for Windows 10 Enterprise Edition. It protects against malware attacks by confining visits to unknown or untrusted websites to a virtual machine, so that attacks can’t spread to a PC or the network.
  • Windows AutoPilot, which improves self-service deployments of Windows 10 PCs, gets a variety of tweaks, including better mobile device management (MDM) services.
  • Windows Analytics’ new Device Health tool gathers information on how PCs perform in an enterprise, and based on that, identifies potential issues and outlines steps to resolve them.
  • Enterprises get more control over what kind of information Windows Analytics gathers for the IT staff. In order to improve users’ privacy, IT staff can limit the information collected by Windows Analytics to only diagnostic data.

For more details about new features for IT, see “What’s new in Windows 10, version 1709 IT Pro content,”  “Announcing end-to-end security features in Windows 10” and “Delivering the Modern IT promise with Windows 10” from Microsoft.

Updates to the Creators Update (version 1703)

KB4041676 (OS Build 15063.674)

Release date: October 10, 2017

This non-feature update addresses a wide variety of issues, including ones related to security. It fixes a bug that won’t allow some games from downloading from the MIcrosoft Store. The build also fixes an issue in which some Universal Windows Platform (UWP) apps and Centennial apps (.NET and Win32-based Windows applications that have been packaged to be published to the Microsoft Store) have a gray icon and display the error message "This app can't open" on launch.

In addition, security updates are included for many parts of Windows, including Microsoft Windows Search Component, Windows kernel-mode drivers, Microsoft Graphics Component, Internet Explorer, Windows kernel, Microsoft Edge, Windows Authentication, Windows TPM, Device Guard, Windows Wireless Networking, Windows Storage and Filesystems, Microsoft Windows DNS, Microsoft Scripting Engine, Windows Server, Windows Subsystem for Linux, Microsoft JET Database Engine, and the Windows SMB Server.

What IT needs to know: Because this is a security update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB4041767.)

KB4040724 (OS Build 15063.632)

Release date: September 25, 2017

This non-feature update addresses two very minor issues: Cellular connectivity and reliability have been improved, and performance problems with Microsoft Edge that were introduced in KB40387888 have been resolved.

(Get more info about KB4040724.)

KB4038788 (OS Build 15063.608)

Release date: Sept. 12, 2017

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