Η Microsoft released update KB4100347 for the latest Windows 10 build 1803, which was released publicly on April 30, 2018.
Build 1803 has a lot of issues with Windows 10 and many are complaining about incompatibilities with certain hard drives, bluescreens, network devices and more.
Here to mention that Windows 10 April 2018 Update δεν συμπεριλάμβανε την ενημέρωση του microcode που προστατεύει από επιθέσεις στοχεύουν την vulnerability Specter, while Microsoft had made available updates in the microcode of all previous versions of Windows 10. (Some successfully and some not)
This time Microsoft took two weeks to release the microcode update for build 1803 via update KB4100347 on May 15, 2018 (last night). The update is currently available through Windows Update and the webσελίδαs Microsoft Update Catalog. It is for Windows 10 build 1803 and Windows Server 2016 build 1803 (Server Core).
Devices configured to automatically download updates via Windows Update will automatically install the microcode update at some point, provided the system processor is supported. 
You can see the list of supported processors in Microsoft support page. Processors Kaby Lake, Coffee Lake, Broadwell, SkyLake, Haswell, Bride Ivy and Sandy Bridge are included. Microsoft continues to update Windows code to support additional processors.
If you want you can download the update directly from Microsoft Update Catalog. It has a size of 1 Megabyte.
- Windows 10: The Great Journey of Paid Reliability
- Microsoft, Apple, Google, Facebook, Amazon and captivity
- Windows 10 Prevent Installation of Preinstalled Apps
