[German]On March 17, 2020, Microsoft released a monthly preview rollup for Windows 8.1 as well as optional updates for older Windows 10 versions (1607 up to 1809).
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Updates for Windows 10
These are so-called C-Week Updates, which are released as optional updates in the third week of a month. A list of the updates can be found on this Microsoft website. I have extracted the details below. The update installation requires an existing current Servicing Stack Updates (SSUs). Microsoft now publishes an overview of current Servicing Stack Updates (SSUs) under ADV990001 (if it is not up to date, check the Microsoft Update Catalog for Servicing Stack Updates).
Update KB4541331 for Windows 10 Version 1809
Cumulative Update KB4541331 raises the OS build to 17763.11315. It contains improvements and bug fixes but no new operating system features. The following highlights are mentioned:
- Updates an issue that causes an error when printing to a document share.
- Updates an issue that prevents the touch keyboard from appearing during sign in when the user is prompted for the password.
- Updates an issue that causes calendar dates to appear on the wrong day of the week in the clock and date region of the notification area when you select the Samoa time zone.
- Improves application and device compatibility with Windows updates.
Here is the list of improvements provided by this update:
- Addresses an issue that causes an error when printing to a document repository.
- Addresses a drawing issue with the Microsoft Foundation Class (MFC) toolbar that occurs when dragging in a multi-monitor environment.
- Addresses an issue that prevents the touch keyboard from appearing during sign in when the user is prompted for the password.
- Addresses an issue that causes new child windows to flicker and appear as white squares on server devices that are configured for stark visual contrast.
- Addresses an issue that displays incorrect folder properties in File Explorer when the path is longer than MAX_PATH.
- Addresses an issue that causes calendar dates to appear on the wrong day of the week in the clock and date region of the notification area when you select the Samoa time zone.
- Addresses an issue with reading logs using the OpenEventLogA() function.
- Addresses an issue that prevents machines that have enabled Credential Guard from joining a domain. The error message is "The server's clock is not synchronized with the primary domain controller's clock."
- Addresses an issue that might cause a delay of up to two minutes when signing in or unlocking a session on Hybrid Azure Active Directory-joined machines.
- Addresses an issue that causes authentication to fail when using Azure Active Directory and the user's security identifier (SID) has changed.
- Addresses an issue that might cause domain controllers (DC) to register a lowercase and a mixed or all uppercase Domain Name System (DNS) service (SRV) record in the _MSDCS.<forest root domain> DNS zone. This occurs when DC computer names contain one or more uppercase characters.
- Addresses an issue that causes authentication in an Azure Active Directory environment to fail and no error appears.
- Addresses an issue that causes high CPU utilization when retrieving a session object.
- Addresses high latency in Active Directory Federation Services (AD FS) response times for globally distributed datacenters in which SQL might be on a remote datacenter.
- Improves the performance for all token requests coming to AD FS, including OAuth, Security Assertion Markup Language (SAML), WS-Federation, and WS-Trust.
- Addresses a high latency issue in acquiring OAuth tokens when AD FS front-end servers and back-end SQL servers are in different datacenters.
- Restores the constructed attribute in Active Directory and Active Directory Lightweight Directory Services (AD LDS) for msDS-parentdistname.
- Addresses an issue to prevent SAML errors and the loss of access to third-party apps for users who do not have multi-factor authentication (MFA) enabled.
- Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
- Addresses an issue that prevents Microsoft User Experience Virtualization (UE-V) settings from roaming to enable the signature files that are used for new messages, forwarded messages, and replies.
- Addresses an issue with high CPU usage on AD FS servers that occurs when the backgroundCacheRefreshEnabled feature is enabled.
- Addresses an issue that creates the Storage Replica administrator group with the incorrect SAM-Account-Type and Group-Type. This makes the Storage Replica administrator group unusable when moving the primary domain controller (PDC) emulator.
- Addresses an issue that prevents some machines from automatically going into Sleep mode under certain circumstances because of Microsoft Defender Advanced Threat Protection (ATP) Auto Incident Response (IR).
- Addresses an issue that prevents some machines from running Microsoft Defender ATP Threat & Vulnerability Management successfully.
- Improves support for non-ASCII file paths for Microsoft Defender ATP Auto IR.
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Addresses an issue that, in some scenarios, causes stop error 0xEF while upgrading to Windows 10, version 1809.
This update is optional and must be downloaded and installed (after a search if necessary) in the Windows Update settings page. This update is also available in the Microsoft Update Catalog and via WSUS. Microsoft strongly recommends that you install the latest service stack update (SSU) for your operating system before you install the latest cumulative update (LCU). Microsoft lists a known problem. If a machine has the KB4493509 update installed, installing the update may cause the error code:
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0x800f0982 = PSFX_E_MATCHING_COMPONENT_NOT_FOUND
when certain Asian Language Packs are installed. In this case, all subsequently installed Language Packs must be uninstalled and the cumulative update KB4493509 installed. Details can be found in the KB article.
Microsoft has also released an update directly for the Windows Update Client to improve its reliability. This is rolled out outside of Windows Update if the machine is compatible and not an LTSC variant and updates have not been blocked by GPO.
Updates for Windows 10 Version 1507 till 1803
For Windows 10 RTM up to version 1803, various updates are available for the LTSC versions and, if necessary, the Enterprise versions. The Home and Pro versions, however, have been dropped from support. Here is a short overview.
- Windows 10 Version 1803: Update KB4541333 is only available for Enterprise and Education. The update raises the OS build to 17134.1399. The fixes mentioned in the KB article are included. This update is automatically downloaded and installed by Windows Update, but is available for download from the Microsoft Update Catalog. Before manual installation, the latest Servicing Stack Update (SSU) must be installed. Details, also for known issues are may be found in the KBb article.
- Windows 10 Version 1709: Update KB4541330 is only available for Enterprise and Education. The update raises the OS build to 16299.1775. It includes the fixes mentioned in the KB article. This update is automatically downloaded and installed by Windows Update, but is available for download from the Microsoft Update Catalog. Before manual installation, the latest Servicing Stack Update (SSU) must be installed. Details, including known issues, can be found in the KB article.
- Windows 10 Version 1607: Update KB4541329 is now available only to Enterprise LTSC. The update raises the OS build to 14393.3595. The fixes mentioned in the KB article are included. This update is automatically downloaded and installed by Windows Update, but is available for download from the Microsoft Update Catalog. Before manual installation, the latest Servicing Stack Update (SSU) must be installed. Details, including known issues, can be found in the KB article.
There was no update for other versions of Windows 10. Details about the above updates can be found in the respective Microsoft KB articles in case of doubt.
Updates for Windows 8.1/Windows Server 2012 R2
For Windows 8.1 and Windows Server 2012 R2 a Preview Monthly Rollup has been released. The update history for Windows 8.1 can be found on this Microsoft page.
KB4541334 (Monthly Rollup) for Windows 8.1/Server 2012 R2
Update KB4541334 (Preview of Monthly Rollup for Windows 8.1 and Windows Server 2012 R2) contains improvements and fixes from the latest updates and a preview of the following month's updates. The Preview Update addresses the following issues.
Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
This update is offered and installed via Windows Update, but is also available in the Microsoft Update Catalog and via WSUS. In case of a manual installation, the latest Servicing Stack Update (SSU KB4540725) must be installed before. The update also has a known issue:
Certain actions, such as renaming, that you perform on files or folders that are located on a Cluster Shared Volume (CSV) can cause the
"STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)"
fail. This occurs when you perform the action on a CSV owner node from a process that does not have administrator rights. See the KB article for details.
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