Technical support

Installing Windows 10 Feature Updates on an Full Disk Encrypted (FDE) system
Article ID: KB379 email a link to this article
Please note: As of The Creators Update (1703), users can convert the boot mode of their system from MBR to UEFI in place.
This is not supported by ESET Endpoint Encryption.



When installing a Windows 10 Feature Update, the process fails saying it "Can't install updates".

When the Windows Update and Security Settings panel is displayed it details that "We found some issues. Select this message to fix and finish updating".

If the Fix issues button is clicked, Windows Update loads and explains it "Couldn't install Windows 10 - ESET Endpoint Encryption Disable encryption to continue or run Windows Setup with the /reflectdrivers command-line option".

Please note, the above error may say DESlock+ instead.


Due to the way major upgrades of Windows 10 are performed, the update process runs in the same manner as if doing an in place upgrade from an older version of Windows to Windows 10. On a system that has Full Disk Encryption (FDE) in place the upgrade is prevented from accessing the disk as it does not come with the required drivers.  The Windows 10 updater realises this, resulting in the warning dialog being seen.

Solution 1:

The upgrade process is seamless in ESET Endpoint Encryption Client version 4.9.0 and onwards. This means you can install Windows Feature updates via normal means.

Please upgrade ESET Endpoint Encryption following one of the articles below:

KB203 - How to upgrade ESET Endpoint Encryption (managed)

KB209 - How to upgrade ESET Endpoint Encryption (standalone)

Once ESET Endpoint Encryption has been updated, simply search for Check for updates in the Start Menu and follow the shortcut to the Windows Settings.



Solution 2:

If you cannot upgrade to ESET Endpoint Encryption, then you can manually install Windows Feature Updates by following this article:

KB462 - How to manually install Windows 10 Feature Updates on an Full Disk Encrypted (FDE) system

Related Information:

KB465 - Technical Details regarding DESlock+ and Windows Feature Updates (version 4.9.0+)

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