Learn more about this security-only update, including improvements, any known issues, and how to get the update.
IMPORTANT Windows 7, Windows Server 2008 R2, Windows Embedded Standard 7, and Windows Embedded POS Ready 7 have reached the end of mainstream support and are now in extended security update (ESU) support. Windows Thin PC has reached the end of mainstream support; however, ESU support is not available.
Starting in July 2020, there will no longer be optional, non-security releases (known as "C" releases) for this operating system. Operating systems in extended support have only cumulative monthly security updates (known as the "B" or Update Tuesday release).
Verify that you have installed the required updates in the How to get this update section before installing this update.
Customers who have purchased the Extended Security Update (ESU) for on-premises versions of this OS must follow the procedures in KB4522133 to continue receiving security updates after extended support ended on January 14, 2020. For more information about ESU and which editions are supported, see KB4497181.
Because ESU is available as a separate SKU for each of the years in which they are offered (2020, 2021, and 2022)—and because ESU can only be purchased in specific 12-month periods—you must purchase the third year of ESU coverage separately and activate a new key on each applicable device for your devices to continue receiving security updates in 2022.
If your organization did not purchase the third year of ESU coverage, you must purchase Year 1, Year 2, and Year 3 ESU for your applicable Windows 7 SP1 or Windows Server 2008 R2 SP1 devices before you install and activate the Year 3 MAK keys to receive updates. The steps to install, activate, and deploy ESUs are the same for first, second, and third year coverage. For more information, see Obtaining Extended Security Updates for eligible Windows devices for the Volume Licensing process and Purchasing Windows 7 ESUs as a Cloud Solution Provider for the CSP process. For embedded devices, contact your original equipment manufacturer (OEM).
For more information, see the ESU blog.
For 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 for Windows 7 SP1 and Windows Server 2008 R2 SP1, see the following update history home page.
This security-only update includes new improvements for the following issues:
When you use Encrypting File System (EFS) files over a remote Web Distributed Authoring and Versioning (WebDAV) protocol connection, the connection might be unsuccessful.
Addresses a known issue that might prevent you from using the Wi-Fi hotspot feature. When attempting to use the hotspot feature, the host device might lose the connection to the Internet after a client device connects.
Addresses a known issue in which Windows Servers that use the Routing and Remote Access Service (RRAS) might be unable to correctly direct Internet traffic. Devices which connect to the server might not connect to the Internet, and servers can lose connection to the Internet after a client device connects.
Known issues in this update
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 in Update History.
This is expected in the following circumstances:
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:
We are working on a resolution and will provide an update in an upcoming release.
How to get this update
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. Extended support ended as follows:
For Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1, extended support ended on January 14, 2020.
For Windows Embedded Standard 7, extended support ended on October 13, 2020.
For Windows Embedded POS Ready 7, extended support ended on October 12, 2021.
For Windows Thin PC, extended support ended on October 12, 2021. Note that ESU support is not available for Windows Thin PC.
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.
You must install the updates listed below and restart 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.
The March 12, 2019 servicing stack update (SSU) (KB4490628). To get the standalone package for this SSU, search for it in the Microsoft Update Catalog. This update is required to install updates that are only SHA-2 signed.
The latest SHA-2 update (KB4474419) released September 10, 2019. If you are using Windows Update, the latest SHA-2 update will be offered to you automatically. This update is required to install updates that are only SHA-2 signed. For more information on SHA-2 updates, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS.
To get this security update, you must reinstall the "Extended Security Updates (ESU) Licensing Preparation Package" (KB4538483) or the "Update for the Extended Security Updates (ESU) Licensing Preparation Package" (KB4575903) even if you previously installed the ESU key. The ESU licensing preparation package will be offered to you from WSUS. To get the standalone package for ESU licensing preparation package, search for it in the Microsoft Update Catalog.
After installing the items above, Microsoft strongly recommends that you install the latest SSU (KB5016057). If you are using Windows Update, the latest SSU will be offered to you automatically if you are an ESU customer. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
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 (KB5015805).
Install this update
Windows Update and Microsoft Update
See the other options below.
Microsoft Update Catalog
To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)
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
Classification: Security Updates
For a list of the files that are provided in this update, download the file information for update KB5015862.
For information about the security updates released on July 12, 2022, see Deployments - Security Update Guide.
Learn about the standard terminology that is used to describe Microsoft software updates.