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This security update includes improvements and fixes that were a part of update KB4457139 (released September 20, 2018) and addresses the following issues:
For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.
| Symptom | Workaround |
| After you apply this update, the network interface controller may stop working on some client software configurations. This occurs because of an issue related to a missing file, oem<number>.inf. The exact problematic configurations are currently unknown. |
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After installing this update, users may not be able to use the Seek Bar in Windows Media Player when playing specific files. This issue does not affect normal playback. |
This issue is resolved in KB4471318. |
| After installing this update, the Event Viewer may not show some event descriptions for network interface cards (NIC). |
This issue is resolved in KB4489878. |
Before installing this update
Windows cumulative updates require that you install the latest servicing stack update (SSU) for your operating system before installing the latest Rollup. This helps to mitigate potential issues while installing the Rollup.
If you are using Windows Update, the latest SSU (KB3177467) 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 update 4462923.
Keywords: windows 7 sp1, windows server 2008 r2 service pack 1, Known Issues