[KB7122] Install Windows 10 Feature Updates on a Full Disk Encrypted (FDE) system


ESET Endpoint Encryption (EEE) Client and EEE Server are separate products from ESET Full Disk Encryption (EFDE)

The article below applies only to the EEE Client or EEE Server and not EFDE.

Visit What's new in ESET Full Disk Encryption to view EFDE content.

  • When installing a Windows 10 Feature Update, the process fails with the following message:

0xC1900101 - 0x20017

The installation failed in the SAFE_OS phase with an error during BOOT operation


This error message is shown when Windows fails to install a Feature update on a Full Disk Encrypted (FDE) Workstation. Windows will fail to install a Feature Update if you do not specify the location of the encryption drivers as part of the installation process.


Creators Update (1703)

As of The Creators Update (1703), users can convert the boot mode of their system from MBR to UEFI. This is not supported by ESET Endpoint Encryption.

Method I. - Check for Windows Update

ESET Endpoint Encryption (EEE) has a preset SetupConfig.ini file which specifies the necessary parameters to allow Windows to install Feature Updates seamlessly through the built-in Windows Update mechanism found in Settings.

  1. Ensure you are running the latest version of EEE
  2. In the Start Menu, search for Check for updates and follow the shortcut to the Windows Settings.

Figure 1-1

  1. Click Check for updates in the Windows Update window.

Figure 1-2

Method II. - Manually install Windows Feature updates

If you are attempting to upgrade Windows using a new Windows ISO file, visit our Knowledgebase article to manually install Windows 10 Feature Updates on a Full Disk Encrypted system.