Reminder
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As of January 10, 2023, Microsoft no longer provides security updates or technical support for Windows 7 Service Pack 1 (SP1). We recommend that you upgrade to a supported version of Windows. For more information, see Update that enables you to upgrade from Windows 7 to a later version of Windows.
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Windows Server 2008 R2 Extended Security Updates (ESU) third and final year ended on January 10, 2023. Additionally, Windows Server 2008 R2 on Azure ended support on January 9, 2024. We recommend that you upgrade to a later version of Windows Server. For more information, see Overview of Windows Server upgrades
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Windows Thin PC reached the end of support on October 12, 2021. Extended Security Updates are not available. For more information, see Windows Thin PC.
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Windows Embedded Standard 7 Extended Security Updates reached end of support on October 10, 2023. For more information, see Windows Embedded Standard 7.
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Windows Embedded POSReady 7 Extended Security Updates will end after October 8, 2024. For more information, see Windows Embedded POSReady 7.
Summary
Learn more about this cumulative security update, including improvements, any known issues, and how to get the update.
Note As of July 2020, optional non-security releases for this operating system are no longer offered. Operating systems in extended support have only cumulative monthly security updates.
Verify that you have installed the required updates in the How to get this update section before installing this update.
For information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, see Description of the standard terminology that is used to describe Microsoft software updates. To view other notes and messages, see Windows 7 SP1 and Windows Server 2008 R2 SP1 update history.
Improvements
This cumulative security update contains improvements that are part of update KB5035888 (released March 12, 2024). This update also makes improvements for the following issue:
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Daylight saving time (DST) changes for Samoa 2021, Kazakhstan 2024, and Palestine Authority 2024. For more information about DST changes, see the Daylight Saving Time & Time Zone Blog.
For more information about the resolved security vulnerabilities, please refer to the Deployments | Security Update Guide and the April 2024 Security Updates.
Known issues in this update
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Symptoms |
Next step |
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After installing this update on domain controllers (DCs), you might notice a significant increase in NTLM authentication traffic. This issue is likely to affect organizations that have a very small percentage of primary domain controllers in their environment and high NTLM traffic. |
This issue is resolved in the Windows update (KB5037780) released on or after May 14, 2024. |
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After installing this update, Windows devices might encounter VPN connection failures. |
This issue is resolved in the Windows update (KB5037780) released on or after May 14, 2024. |
How to get this update
Before installing this update
We strongly recommend that you install the latest servicing stack update (SSU) for your operating system before installing the latest Rollup. SSUs improve the reliability of the update process to mitigate potential issues while installing the Rollup and applying Microsoft security fixes. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
If you use Windows Update, the latest SSU (KB5034865) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.
Language packs
If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Learn about adding a language pack to Windows.
Install this update
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Release Channel |
Available |
Next Step |
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Windows Update and Microsoft Update |
Yes |
None. This update will be downloaded and installed automatically from Windows Update if you are an ESU customer. |
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Microsoft Update Catalog |
Yes |
To get the standalone package for this update, go to the Microsoft Update Catalog website. To download updates from the Update Catalog, see Steps to download updates from the Windows Update Catalog. |
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Windows Server Update Services (WSUS) |
Yes |
This update will automatically sync with WSUS if you configure Products and Classifications as follows: Product: Windows Server 2008 R2 Service Pack 1 Classification: Security Updates For more information, see Configure classifications and products to synchronize. |
File information
For a list of the files that are provided in this update, download the file information for update KB5036967.
