Windows Update KB4052623 May Cause Boot Failures on Systems Running Dell Encryption Enterprise or Dell Encryption Personal

Windows Update KB4052623 May Cause Boot Failures on Systems Running Dell Encryption Enterprise or Dell Encryption Personal


Devices running Dell Encryption Enterprise (formerly Dell Data Protection | Enterprise Edition), Dell Encryption Personal (formerly Dell Data Protection | Personal Edition), or Dell Encryption Enterprise for Server (formerly Dell Data Protection | Server Encryption) may fail to boot after applying Windows Update KB4052623.


Affected Products:

Dell Encryption Enterprise
Dell Data Protection | Enterprise Edition
Dell Encryption Personal
Dell Data Protection | Personal Edition
Dell Encryption Enterprise for Server
Dell Data Protection | Server Encryption

Affected Versions:

v8.17.1 and Earlier

Affected Platforms:

Windows 10
Windows Sever 2016




On January 4, Microsoft released KB4052623 to the public. This update modifies the install location for Windows Defender from a protected directory in Program Files (Dell Encryption Enterprise, Dell Encryption Personal, and Dell Encryption Enterprise for Server monitors) to an unmonitored location in ProgramData. To prevent boot failures, it is recommended to add the following exclusions into SDE (Fixed Disk) and Common/User (General Settings) exclusions:

-^%ENV:SYSTEMDRIVE%\ProgramData\Microsoft\
-^%ENV:SYSTEMDRIVE%\Windows\System32\Drivers\

Note: These exclusions were updated on February 8, 2018 based on further testing. These exclusions have changed to ensure that any sensitive data remains protected and to ensure that issues are not seen.

Future versions of Dell Encryption will automatically exclude and decrypt these locations to ensure the stability of the system.

For information on modifying policies on the Dell Security Management Server, please reference this KB:

How To Modify Policies on the Dell Data Protection Server

'For more information on the update from Microsoft, please reference this article:

Update for Windows Defender antimalware platform External Link


For support, US-based customers may contact Dell Data Security ProSupport at 877.459.7304, Option 1, Ext. 4310039, or via the Chat Portal. To contact support outside the US, reference ProSupport’s International Contact Numbers. For additional insights and resources, visit the Dell Security Community Forum.



Artikel-ID: SLN308805

Datum der letzten Änderung: 09/14/2019 10:05 AM


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