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Aside from Windows 10 and Windows 11, Microsoft has released Patch Tuesday updates for its two older systems, Windows 7 (KB5012626) and 8.1 (KB5012670). Unlike the Windows 11 patch notes, the ones for Windows 7 and Windows 8.1 are quite extensive and so are the known issues.
Windows 8.1
Improvements and fixes
- Addresses an issue in Windows Media Center where some users might have to reconfigure the application on each start.
- Addresses a memory leak that was introduced by the PacRequestorEnforcement registry key in the November 2021 Cumulative Update that causes a decrease in performance on domain controllers.
- Addresses an issue in which Event ID 37 might be logged during certain password change scenarios.
- Addresses an issue in which Windows might go into BitLocker recovery after a servicing update.
- Addresses an issue in which domain joins may fail in environments that use disjoint DNS hostnames.
- Addresses an issue that causes a Denial of Service vulnerability on Cluster Shared Volumes (CSV). For more information, see CVE-2020-26784.
- Addresses an issue that prevents you from changing a password that has expired when you sign in to a Windows device.
Known issues in this update
| Symptom |
Workaround
|
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Certain operations, such as rename, that you
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Do one of the following:
Microsoft is working on a resolution and will
|
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After installing updates released January 11, 2022 or later updates, apps using Microsoft .NET
Note for developers: Affected apps use
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To resolve this issue manually, apply the out-of-band updates for the version of .NET
Note These out-of-band updates are not
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Windows 7
Improvements and fixes
- Addresses an issue in Windows Media Center where some users might have to reconfigure the application on each start.
- Addresses a memory leak that was introduced by the PacRequestorEnforcement registry key in the November 2021 Cumulative Update that causes a decrease in performance on domain controllers.
- Addresses an issue in which Event ID 37 might be logged during certain password change scenarios.
- Addresses an issue that occurs when you try to write a service principal name (SPN) alias (such as www/contoso) and HOST/NAME already exists on another object. If the user has the RIGHT_DS_WRITE_PROPERTY on the SPN attribute of the colliding object, you receive an “Access Denied” error.
- Addresses an issue in which domain joins may fail in environments that use disjoint DNS hostnames.
- Addresses an issue that prevents you from changing a password that has expired when you sign in to a Windows device.
Known issues in this update
| Symptom |
Workaround
|
|
After installing this update and restarting your
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This is expected in the following circumstances:
If you have purchased an ESU key and have
|
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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:
Microsoft is working on a resolution and will
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The Windows 8.1 update will be updated automatically through Windows Update while the Windows 7 update will be installed automatically through Windows Update if you are an ESU customer.
Microsoft releases Patch Tuesday updates for Windows 7 (KB5012626) and 8.1 (KB5012670)
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