January 11, 2022—KB5009621 (Security-only update)
Applies To
Windows 7 Enterprise ESU Windows 7 Professional ESU Windows 7 Ultimate ESU Windows Server 2008 R2 Enterprise ESU Windows Server 2008 R2 Standard ESU Windows Server 2008 R2 Datacenter ESU Windows Embedded Standard 7 ESU Windows Embedded POSReady 7 ESURelease Date:
11/01/2022
Version:
Security-only update
Caution:Ā If you intend to install this update on a domain controller (DC), we highly recommend that you install the February 8, 2022 security update instead. The February securityĀ update addressesĀ a known issue that might cause some versions of Windows Server to restart unexpectedly.
Summary
Learn more about this security update, including improvements and fixes, any known issues, and how to get the update.
IMPORTANTĀ 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.Ā
Starting in July 2020, there will no longer be optional, non-security releases (known asĀ "C"Ā releases) for this operating system. Operating systems in extended support haveĀ onlyĀ cumulative monthly security updates (known as the "B" or Update Tuesday release).
Verify thatĀ you have installed the required updates listed in theĀ How to get this updateĀ sectionĀ beforeĀ installing this update.Ā
For information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the followingĀ article.Ā To view other notes andĀ messages, see the Windows 7 and Windows Server 2008 R2 updateĀ historyĀ home page.
Improvements and fixes
This security update includes quality improvements. Key changes include:
-
This update contains miscellaneous security improvements to internal OS functionality. No specific issues are documented for this release.
For more information about the resolved security vulnerabilities, please refer to the newĀ Security Update GuideĀ website and the January 2022 Security Updates.
Known issues in this update
Symptom |
Workaround |
After installing this update and restarting your device, you might receive the error, āFailure to configure Windows updates. Reverting Changes. Do not turn off your computer,ā and the update might show asĀ FailedĀ inĀ Update History. |
This is expected in the following circumstances:
|
Certain operations, such asĀ rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error,Ā "STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)". This occurs when you perform the operation on a CSV owner node from a process that doesnāt have administrator privilege. |
Do one of the following:
Microsoft is working on a resolution and will provide an update in an upcoming release. |
After installing this update on domain controllers (DCs), affected versions of Windows Server might restart unexpectedly. |
This issue is resolved in KB5010798. |
After installing this update or a later update, users might experience pass-through authentication failures when authenticating by using the NTLM protocol with domain controllers running Windows Server 2008 R2. Environments affected by this issue may produce the following events:
|
This issue is resolved inĀ KB5010422. This issue is not present in later versions of Windows Server and can be avoided by upgrading Windows Server 2008 R2 domain controllers to a later Windows Server version. |
How to get this update
Before installing this update
IMPORTANTĀ Customers who have purchased the Extended Security Update (ESU) for on-premises versions of these operating systems must follow the procedures inĀ KB4522133Ā 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, seeĀ KB4497181.
NoteĀ For Windows Embedded Standard 7, Windows Management Instrumentation (WMI) mustĀ be enabled toĀ get updates from Windows Update or Windows Server Update Services.
Prerequisite:
You must installĀ the updates listed below andĀ restart your deviceĀ 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.
-
TheĀ March 12, 2019 servicing stack update (SSU) (KB4490628).Ā To get the standalone package for this SSU, search for it in theĀ 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, seeĀ 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. TheĀ ESU licensing preparation package will be offered to you from WSUS.Ā To get the standalone package for ESU licensing preparation package, search for it in theĀ Microsoft Update Catalog.
After installing the items above, Microsoft strongly recommends that you install theĀ latestĀ SSU (KB5006749).Ā If you are using Windows Update, the latest SSUĀ will be offered to you automatically if you are an ESU customer.Ā To get the standalone package for the latestĀ SSU, search for it in theĀ Microsoft Update Catalog. For general information about SSUs,Ā seeĀ Servicing stack updatesĀ andĀ Servicing Stack Updates (SSU): Frequently Asked Questions.
REMINDERĀ 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 (KB5006671).
Install this update
Release Channel |
Available |
Next Step |
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 theĀ Microsoft Update CatalogĀ website. |
Windows Server Update Services (WSUS) |
Yes |
This update will automatically syncĀ with WSUS if you configureĀ Products and ClassificationsĀ as follows: Product:Ā Ā Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1,Ā Windows Embedded Standard 7 Service Pack 1, Windows Embedded POSReady 7 Classification: Security Updates |
File information
For a list of the files that are provided in this update, download theĀ file information for update 5009621.