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Release Date:

12/19/2018

Version:

OS Build 10240.18064

Improvements and fixes

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

  • Security update to Internet Explorer.

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 vulnerability, please refer to 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 doesn't apply to long-term servicing editions.

Known issues in this update

Microsoft is not currently aware of any issues with this update.

How to get this update

Deployment Notes

For customers using Windows Update offline scan file, Wsusscn2.cab, no new December scan cab will be issued. You will need to download the December 2018 WSUS scan cab and then manually download this KB from Microsoft Update Catalog to deploy. An updated scan file that includes this KB will be available in the next security release in January 2019.

A Delta package for this update will not be available. Customers using Delta package updates need to apply the Full Update. Customers who do not apply the Full update, and only the December Delta package update from December 11,

2018 will experience an update failure when installing the January Delta Update. The January Full update will install correctly.

Before installing this update

Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For more information, see Servicing stack updates.

If you are using Windows Update, the latest SSU (KB4093430) will be offered to you automatically. To get the stand-alone package for the latest SSU, go to the Microsoft Update Catalog.

Install this update

This update will be downloaded and installed automatically from Windows Update. To get the stand-alone 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 4483228

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