Last week, Microsoft announced that it will merge the service stack update (SSU) and the latest cumulative update (LCU) from Windows 10 version 1809 and above to reduce the number of administrators installing updates but failing to install or manage trouble.
Microsoft released Patch Tuesday last week and also released KB4601393, which is the February SSU for Windows 10 1809 and Windows Server 2019. According to Microsoft, this version of SSU supports a single package design that integrates Microsoft SSU and LCU. This design can simplify the deployment and installation process of Windows 10 updates.
The so-called SSU is a component that assists in the installation of Windows updates, which can ensure that the computer smoothly receives and installs Windows cumulative updates. When users or administrators manually install Windows updates, they must select the correct SSU for the latest cumulative update (LCU). Before installing some LCUs, the computer must have a specific SSU. If the administrator skips not installing the SSU before, the LCU installation will fail. Unfortunately, in the past, Windows only displayed the error message “Update not applicable”. This made the administrator or user unclear what was wrong. Therefore, Microsoft announced in September last year that it would add SSU to the LCU as a single package to reduce the trouble of administrators and deliver it to computers through WSUS (Windows Server Update Services) and Microsoft Catalog.
Microsoft SSU Will Support Single Package
The Redmond-based company stated that this month SSU will support a single package design that integrates Microsoft SSU and LCU. This design can simplify the deployment and installation process of Windows 10 updates. Another Microsoft document pointed out that the February SSU is a prerequisite for the computer to install the latest cumulative update (a single package of LCU combined with SSU). This single kit design can avoid the problem of not being able to install LCU due to the lack of SSU.
Microsoft also stated that when using WSUS such as the Configuration Manager, users will automatically apply the correct SSU when they choose to update the monthly cumulative update. If the enterprise activates the “Dynamic Update Package” to update the Windows 10 image file, Microsoft Catalog will no longer have a separate SSU, but will provide a package that integrates SSU and LCU.
Currently, only the newer (above 1809) version of Windows 10 has a single package. But Microsoft plans to convert the old version into this integrated package in the next few months. Prior to this, Microsoft called on enterprise computers to install the February 2021 SSU.