IMPORTANTVerify that you have installed the required updates listed in the How to get this update section before installing this update.
NEW 11/10/20
For more information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the following article. To view other notes and messages, see the Windows 7 SP1 and Windows Server 2008 R2 SP1 update history home page.
This security update includes quality improvements. Key changes include:
Symptom | Workaround |
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After installing this update and restarting your device, you might receive the error, “Failure to configure Windows updates. Reverting Changes. Do not turn off your computer,” and the update might show as Failed inUpdate History. | This is expected in the following circumstances: |
If you are installing this update on a device that is running an edition that is not supported for ESU. For a complete list of which editions are supported, see KB4497181.
If you do not have an ESU MAK add-on key installed and activated.
If you have purchased an ESU key and have encountered this issue, please verify you have applied all prerequisites and that your key is activated. For information on activation, please see this blog post. For information on the prerequisites, see the “How to get this update” section of this article.
Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.| Do one of the following:
Perform the operation from a process that has administrator privilege.
Perform the operation from a node that doesn’t have CSV ownership.
Microsoft is working on a resolution and will provide an update in an upcoming release.
Before installing this update
IMPORTANT Customers who have purchased the Extended Security Update (ESU) for on-premises versions of these operating systems must follow the procedures in KB4522133 to continue receiving security updates after extended support ends. Extended support ends as follows:For more information about ESU and which editions are supported, see KB4497181.
Note For Windows Embedded Standard 7, Windows Management Instrumentation (WMI) must be enabled to get updates from Windows Update or Windows Server Update Services.Prerequisite:You must install the updates listed below andrestart your device before installing the latest Rollup. Installing these updates improves the reliability of the update process and mitigates potential issues while installing the Rollup and applying Microsoft security fixes.
Important For Windows Thin PC, you must have the August 11, 2020 SSU (KB4570673) or a later SSU installed to make sure you continue to get the extended security updates starting with the October 13, 2020 updates.
REMINDER If you are using Security-only updates, you will also need to install all previous Security-only updates and the latest cumulative update for Internet Explorer (KB4586768).
Install this update****Release Channel | Available | Next Step |
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Windows Update and Microsoft Update | No | See the other options below. |
Microsoft Update Catalog | Yes | To get the standalone package for this update, go to the Microsoft Update Catalog website. |
Windows Server Update Services (WSUS) | Yes | This update will automatically sync with WSUS if you configure Products and Classifications as follows:Product: Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1, Windows Embedded Standard 7 Service Pack 1, Windows Embedded POSReady 7, Windows Thin PCClassification: Security Updates File informationFor a list of the files that are provided in this update, download the file information for cumulative update 4586805. |