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Release Date:

2/13/2018

Version:

OS Build 10240.17770

Improvements and fixes

This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

  • Addresses a script-related issue that caused Internet Explorer to stop working in some cases.

  • Addresses issue in Internet Explorer where pressing the delete key inserted a new line in input boxes in an application.

  • Addresses issue where some users may have experienced issues logging into some websites when using third-party account credentials in Microsoft Edge.

  • Updates time zone information.

  • Addresses issue where custom credential providers sometimes didn't correctly display the password text box.

  • Addresses issue that causes services.exe to stop working after applying the "Obtain an impersonation token for another user in the same session” privilege to Windows Server 2012 R2 computers. These computers then enter a restart loop. The system may report the SceCli event ID 1202 with error 0x4b8. It may also report the Application Error event ID 1000 with the faulting module name scesrv.dll and the exception code 0xc0000409. This privilege was first introduced in Windows Server 2016.

  • Addresses issue where the certutil.exe -MergePfx feature couldn't produce a merged EPF file for multiple V1 certificates.

  • Addresses issue where MMC application snap-ins—such as Services, Local Policy Admin, and Printer Management—fail to run when Windows Defender Application Control (Device Guard) is turned on. The error is "Object doesn't support this property or method."

  • Addresses issue that decreases the Universal CRT’s performance in the _gcvt and _gcvt_s functions.

  • Addresses issue in which the output to a file or pipe was fully buffered in the Universal CRT for the standard error (STDERR) stream.

  • Addresses issue in the Universal CRT by adding the "x" access mode flag to support the fopen() function.

  • Security updates to Windows Kernel, the Microsoft Scripting Engine, Microsoft Edge, Internet Explorer, Microsoft Windows Search component, Device Guard, Windows storage and file systems, and the Common Log File System driver.

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.

For more information about the resolved security vulnerabilities, see the Security Update Guide.

Windows Update Improvements

Microsoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 Feature Update based on device compatibility and Windows Update for Business deferral policy. This does not apply to long-term servicing editions.

 

Known issues in this update

Symptom

Workaround

Because of an issue that affects some versions of antivirus software, this fix applies only to computers on which the antivirus ISV updated the ALLOW REGKEY.

This issue is resolved in KB4088786.

 

How to get this update

This update will be downloaded and installed automatically from Windows Update. To get the standalone package for this update, go to the Microsoft Update Catalog website.

File information

For a list of the files that are provided in this update, download the file information for cumulative update 4074596

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