Microsoft released October’s service stack reliability enhancements, which allows users to download and install Windows updates, for all versions of Windows 10.
Microsoft says these Critical Service Stack Updates fix “a problem that does not extend the Secure Boot Revocation List (DBX) where the Secure Boot Revocation List is empty,” and “improves the Secure Boot Revocation List (DBX) upgrade experience to stop many restarts when using the DBX update on a system that does not have a Credential Guard service.
When installing cumulative October updates, all Windows 10 users are encouraged to start up with the Windows 10 service stack update for the latest version.
October 2019 Patch Tuesday security updates were also issued by Microsoft with 1 advisory and patch for 59 vulnerabilities (Windows 10 Servicing Stack Updates). Eight of them were ranked critical by Microsoft.
Security updates for Microsoft Office have also been released today in October 2019 with a maximum of 14 security updates and 4 combined updates for seven different products, nine of which have fixed vulnerabilities for remote code execution.
Updates Available to the System Stack in the Windows Update Catalogue
Windows 10 users are encouraged to upgrade their maintenance stack to avoid potential problems that might occur during future reliability and functionality upgrades installation process.
Microsoft states in the support report of the product stack that:
Servicing stack updates improve the reliability of the update process to mitigate potential issues while installing the latest quality updates and feature updates. If you don’t install the latest servicing stack update, there’s a risk that your device can’t be updated with the latest Microsoft security fixes.
The following table lists all the versions of Windows 10 that provided an SSU today, as well as the correspunding articles with links to the update pages of the Microsoft Update Catalogue:
| Servicing stack updates | |
| Product | Support article |
| Windows 10 1903 / Windows Server, version 1903 | KB4521863 |
| Windows 10 1809 / Windows Server 2019 | KB4521862 |
| Windows 10 1803 / Windows Server, version 1803 | KB4521861 |
| Windows 10 1709 | KB4521860 |
| Windows 10 1703 | KB4521859 |
| Windows 10 1607 / Server 2016 | KB4521858 |
| Windows 10 1507 | KB4521856 |
Deploy system stack patch
Serving stack updates include the “component-based maintenance stack (CBS), a key component underlying many Windows implementation components, such as DISM, SFC, Window features and/or roles changing, and system repair,” as reported by Microsoft on the Windows IT Pro Center.
SSUs may be automatically updated via the Windows Update or using standalone update packs, which can be downloaded from the Microsoft Update Catalog Website — the table above includes links for allWindows-10 versions.
Users of the Windows Server can use Windows Server Update Services (WSUS) to mass-deploy SSUs on all network computers.
Setup Notice Servicing stack updates:
• Servicing stack updates contain the full servicing stack; as a result, typically administrators only need to install the latest servicing stack update for the operating system.
• Installing servicing stack update does not require restarting the device, so installation should not be disruptive.
• Servicing stack update releases are specific to the operating system version (build number), much like quality updates.
• Search to install latest available Servicing stack update for Windows 10.
Windows 10 users can go through this directed way or use the information available for fixing problems in this help post.