OS locks up after FDE installation

[Peter_Bjeldbak]

Greetings !

I have recently deployed FDE on my endpoints.

I use same rule/policy for all FDE clients with great success.

However - certain models among my clients encounters issues when rebooting after encryption - "Loading OS" - then comes to a halt.
I can rule out TPM issues - since i have successfully encrypted Virtual machines  - while testing policies for dialog and timing.

These seems to have the issue.

Dell Latitude 5270 *
Dell Latitude 5570 *
Dell Optiplex 7040 *
Dell Optiplex 7050
Dell Latitude 5470 *
Dell Latitude 7280 *
Dell Latitude 7240 *
Dell Latitude 7270 *

However - i have several older Dell models (for eksampel E5530 / E5440 ... ) which encrypts with no issues.

Any ideas as to how to proceed  - i need to encrypt all my clients - but would rather not be forced to switch all of the above PC's for new ones just yet.

Kind regards

Peter

[LucianLS]

Try disabling Fast boot/Quick boot in the bios settings.

[Peter_Bjeldbak]

Hi Lucian and thanks

Sounds like a good suggestion - will try soon.

kind regards

Peter

[Peter_Bjeldbak]

Alas - that did not solve the matter - still fails 😞

But thx for the suggestion.

kind regards

Peter

[Chris_Atkinson]

Which Endpoint release are you seeing this on out of interest?

[Peter_Bjeldbak]

Hi Chris

I am using 86.00.0007

kind regards

Peter

[jcortez · Accepted solution]

@Peter_Bjeldbak 

Please make sure that all of the Dell machines you are installing FDE on have the latest BIOS updates. And what is the main drive in the systems formatted as, AHCI or IRRT?

If you have further issues after all the suggestions posted here thus far, I would highly recommend opening a SR with TAC (endpoint team in TAC).

[Peter_Bjeldbak]

Seems like you might have struck home - after setting AHCI instead of IRRT (raid) - it seems to behave better - i will do more tests and report.

kind regards

Peter

[Peter_Bjeldbak]

The shift from IRRT/Raid to  AHCI did the trick - thank you for the suggestion.

[jcortez]

Awesome! Glad that fixed it for you.