La mise à jour cumulative KB4345421 est disponible via Windows Update pour Windows 10 - version 1803
https://support.microsoft.com/en-us/help/4345421Improvements and fixes
This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:
Addresses an issue that may cause some devices running network monitoring workloads to receive the 0xD1 Stop error because of a race condition after installing the July update.
Addresses an issue with the DHCP Failover server that may cause enterprise clients to receive an invalid configuration when requesting a new IP address. This results in a loss of connectivity.
Addresses an issue that may cause the restart of the SQL Server service to fail occasionally with the error, “Tcp port is already in use”.
Addresses an issue that occurs when an administrator tries to stop the World Wide Web Publishing Service (W3SVC). The W3SVC remains in a "stopping" state, but cannot fully stop or it cannot be restarted.
If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.
Disponible aussi dans le Catalogue Microsoft Update
KB4345421
Un redémarrage est requis.
La version Windows 10 passe à 17134.167

La fiche du support Microsoft mentionne le numéro de build 17134.166.
Mais la version réelle, constatée après installation de la KB4345421 sur 3 PC, est bien 17134.167, conformément à l'article ci-dessous
https://www.tenforums.com/windows-10-ne ... -16-a.html