This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.
We strongly recommend you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). Installing servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft security fixes.
How to get this update
Method 1: Windows Update
This update is available through Windows Update. It will be downloaded and installed automatically.
Method 2: Microsoft Update Catalog
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
Method 3: Windows Server Update Services
This update is also available through Windows Server Update Services (WSUS).
You must have the following updates installed before you apply this update. If you use Windows Update, these updates will be offered automatically as needed.
- You must have the SHA-2 update (KB4474419) that is dated September 23, 2019 or a later SHA-2 update installed and then restart your device before you apply this update. If you use Windows Update, the latest SHA-2 update will be offered to you automatically. For more information about SHA-2 updates, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS.
- You must have the servicing stack update (SSU) (KB4490628) that is dated March 12, 2019 or a later SSU update installed. For more information about the latest SSU updates, see ADV990001 | Latest Servicing Stack Updates.
Important You must restart your device after installing all the required updates and before installing any Monthly Rollup, Security-only update, or Preview of Monthly Rollup.
You don't have to restart your computer after you apply this update.
Update replacement information
This update replaces the previously released update KB 4516655.
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.
Windows 7 and Windows Server 2008 R2 file information
The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.