- KB4570333 – 2020-09 Cumulative Update for Windows Server 2019 for x64-based Systems
- KB4577015 – 2020-09 Cumulative Update for Windows Server 2016 for x64-based Systems
- KB4576750 – 2020-09 Servicing Stack Update for Windows Server 2016 for x64-based Systems
- KB4577066 – 2020-09 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems
- KB4577071 – 2020-09 Security Only Quality Update for Windows Server 2012 R2 for x64-based Systems
Impacted Products:
- Microsoft Windows
- Microsoft Edge (EdgeHTML-based)
- Microsoft Edge (Chromium-based)
- Internet Explorer
- Microsoft Office and Microsoft Office Services and Web Apps
- Windows Defender
- Visual Studio
- Microsoft Dynamics
- .NET Framework
- .NET Core
Please note the following information regarding the security updates:
- For information regarding enabling Windows 10, version 1809 features and later, please see Windows 10, version 1909 delivery options. Note that Windows 10, versions 1903 and 1909 share a common core operating system with an identical set of system files. They will also share the same security update KBs. There is no change to the cumulative monthly security update
- Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog.
- For information on lifecycle and support dates for Windows 10 operating systems, please see Windows Lifecycle Facts Sheet.
- A list of the latest servicing stack updates for each operating system can be found in ADV990001. This list will be updated whenever a new servicing stack update is released. It is important to install the latest servicing stack update.
- Updates for Windows RT 8.1 and Microsoft Office RT software are only available via Windows Update.
- In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features.
Known Issues:
KB4570333 Applies to: Windows 10 version 1809 all editions, Windows Server version 1809, Windows Server 2019 all editions
https://support.microsoft.com/en-in/help/4570333/windows-10-update-kb4570333
Symptoms:
After installing KB4493509, devices with some Asian language packs installed may receive the error, “0x800f0982 – PSFX_E_MATCHING_COMPONENT_NOT_FOUND.”Workaround:
- Uninstall and reinstall any recently added language packs. For instructions, see Manage the input and display language settings in Windows 10.
- Select Check for Updates and install the April 2019 Cumulative Update. For instructions, see Update Windows 10.
Note If reinstalling the language pack does not mitigate the issue, reset your PC as follows:
- Go to the Settings app > Recovery.
- Select Get Started under the Reset this PC recovery option.
- Select Keep my Files.
Microsoft is working on a resolution and will provide an update in an upcoming release.
KB4577015 Applies to: Windows 10 version 1607 all editions, Windows Server 2016
https://support.microsoft.com/en-in/help/4577015/windows-10-update-kb4577015
Symptoms:
After installing KB4467684, the cluster service may fail to start with the error “2245 (NERR_PasswordTooShort)” if the group policy “Minimum Password Length” is configured with greater than 14 characters.
Workaround:
Set the domain default “Minimum Password Length” policy to less than or equal to 14 characters.
Microsoft is working on a resolution and will provide an update in an upcoming release.
KB4576750 Applies to: Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for ARM64-based Systems, Windows 10 Version 1607 for x64-based Systems
This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.
https://support.microsoft.com/en-us/help/4576750/servicing-stack-update-for-windows-10-version-1607
KB4577066 Windows 8.1Windows Server 2012 R2Windows Embedded 8.1 Industry Enterprise Windows Embedded 8.1 Industry Pro
https://support.microsoft.com/en-in/help/4577066/windows-8-1-update
Symptoms:
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.
Workaround:
Do one of the following:
- Perform the operation from a process that has administrator privilege.
- Perform the operation from a node that doesn’t have CSV ownership.
- Microsoft is working on a resolution and will provide an update in an upcoming release.
KB4577071 Applies to: Windows 8.1Windows Server 2012 R2Windows Embedded 8.1 Industry Enterprise Windows Embedded 8
https://support.microsoft.com/en-in/help/4577071/windows-8-1-update
Symptoms:
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.
Workaround:
Do one of the following:
- Perform the operation from a process that has administrator privilege.
- Perform the operation from a node that doesn’t have CSV ownership.
- Microsoft is working on a resolution and will provide an update in an upcoming release.