https://wccftech.com/windows-10-cumulative-update-out-for-version-1903/

Microsoft has released a new cumulative update to the latest Windows 10 May 2019 Update. This latest release includes patches for several bugs, including the RASMAN (error code 0xc0000005) problem that was caused by last month’s cumulative update.

There are still a few known issues that remain to be addressed, including the Sandbox issue. More details available here. Today’s Windows 10 cumulative update follows the update issued to the May 2019 Update on July 9. You can go to Settings > Update & Security > Windows Update and Check for updates to update your machine or download it manually through the Microsoft Update Catalog.