Microsoft has recently pushed two updates KB4520390 & KB4517210 to improve the Windows 10 version 1903 installation and update experience. Servicing Stack Update KB4520390 brings improvements to the update experience on Version 1903 by improving the update component.


This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.

We strongly recommend you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). Installing servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft security fixes.

You can also download and install KB4520390 manually by clicking here. If you need help in installing the update manually, refer to our tutorial that will let you know it in easy steps.

Compatibility update KB4517210 brings improvements to make the installation experience better when you upgrade to Windows 10, version 1903.


This update makes improvements to ease the installation experience when you upgrade to Windows 10, version 1903. Key changes include the following:
  • Addresses an issue in the migration file (.mig) which may cause an error to occur after you upgrade.

  • Addresses an issue that causes a black screen when you try to create a new virtual machine (VM). This issue occurs after VMWare version 15.10 or an earlier version is installed and then you upgrade.

  • Addresses incompatible third-party drivers that may cause issues when you upgrade.

  • Addresses an issue during the upgrade in which Korean characters may be clipped or unreadable.

  • Addresses an issue that causes the ESD file to be unnecessarily redownloaded during the upgrade.

  • Addresses hard link issues when you perform an offline upgrade.