Overview

LanGuard does not list superseded patches; it only lists the one at the top of the supersede chain.

Near the end of 2016, Microsoft changed the way patches are released with Cumulative Updates. For more information, see the Microsoft article: Further simplifying servicing models for Windows 7 and Windows 8.1

This article guides you on how to check if a patch from a previous update has been installed through Cumulative Updates.

Process

MS17-010 Patch is used as an example below.
LanGuard is used as a starting point to determine if the MS17-010 patch is installed on the Windows 10 machine:

1. Visit the KB Number TechNet page and search for MS17-010.
   Example: On the MS17-010 page, it shows that the KB number for the particular OS Windows 10 Version 1607 for x64-based Systems is KB4013429.
2. Windows 10 patches are cumulative and new patches include (supersede) the older ones they replace.
3. Go to Dashboard > Patches > Installed Security Updates.
4. Locate the latest Cumulative Update:
   Example: 2017-05 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB4019472)
5. Click the URL in the Details pane to open the KB page at Microsoft.
   
   
6. Follow the KB in the page section.
7. Look for Update Replacement Information stating:
   This update replaces the previously released update KB4015217.
8. Repeat above until you get to an update which states:
   This update replaces the previously released update KB4013429.
9. Since KB4019472 installed and superseded KB4013429 this patch is installed and the system is up to date.
   
   

Resources

Steps 5-9 references the following pages:

• May 9, 2017—KB4019472 (OS Build 14393.1198)
• April 11, 2017—KB4015217 (OS Build 14393.1066 and 14393.1083)
• March 14, 2017—KB4013429 (OS Build 14393.953)
• March 20, 2017—KB4015438 (OS Build 14393.969)