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System becomes unresponsive during preboot authentication on a Dell system fitted with Non-Volatile Memory Express (NVMe) SSD drive
Technical Articles ID:   KB87074
Last Modified:  6/7/2018


McAfee Drive Encryption (DE) 7.x

PCIe NVMe SSD (form factor M.2)

Dell Models:
  • Precision
  • XPS
  • Latitude

    NOTE: Other Dell models might also be affected.
For details of DE supported environments, see KB79422.


Users are sometimes unable to authenticate at preboot after successfully installing DE, encrypting the hard disk, and restarting. The preboot file system then becomes corrupted, preventing users from accessing Windows.

Users see this intermittent issue on various Dell models that are fitted with a PCIe NVMe Solid State Drive (SSD).

One or more of the errors might display at preboot or coming out of hibernation:
unexpected eeuefi boot code cpp:std:bad-alloc

unexpected exception epeufibootcode.cp failed to deserialize type 0xee00005

unexpected exception in EpeUefiBootcode.cpp: 0xEE00005 Failed to deserialize type

Fatal Error [0xEE000005] Failed to deserialize Type

Fatal error [0xee0D001] Failed to read registry file

Your computer can’t come out of hibernation. Status 0xc000009a


McAfee investigated this problem with Dell and found the issue to be with the Dell system BIOS that was allowing a memory location to be overwritten.


To resolve the problem, update the Dell system BIOS to the revisions listed below or to a later release.

Latitude E7470 1.6.3
Latitude E7270 1.6.3
Latitude E5570 1.7.3
Latitude E5470 1.7.3
Latitude E5270 1.7.3
Latitude 7370 1.4.5
Precision 7710 1.6.6
Precision 7510 1.6.6
Precision 5510 
XPS 15 -9550
XPS 13- 9350

The latest BIOS revisions can be downloaded from: www.dell.com/support/drivers.

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