If the device is already on Windows 10 22H2 build 19045.7663, then KB5120249 is already installed. That KB corresponds to the August 11, 2026 security update that brings Windows 10 22H2 to OS Build 19045.7663.
A few points from the update information:
- KB5120249 is the update for build 19045.7663
If the system shows 19045.7663, that matches the KB5120249 release.
- The update should normally install automatically through Windows Update
Microsoft states this update is downloaded and installed automatically from Windows Update, or from Windows Update for Business according to policy.
- There are currently no known issues listed for KB5120249
Microsoft says it is not currently aware of any issues with this update.
- The latest SSU is required
Microsoft notes that the latest servicing stack update is required before applying Windows updates, and that not having the latest SSU can prevent a Windows update from being offered.
For the current device, no further action is indicated if the build is already 19045.7663.
For the friends who are not getting KB5120249:
- Confirm they are on Windows 10 22H2.
- Check whether the latest servicing stack update is installed.
- Use Windows Update first, since that is the standard delivery channel.
- If needed, the standalone package is available from the Microsoft Update Catalog.
The ESU detail in the question cannot be verified from the provided support article for KB5120249, so the key point here is simply that build 19045.7663 means KB5120249 has been applied.
References: