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FloydG
Contributor
yesterday

E89.25 Preboot-Loop

Dear CheckMates,

I could not find any knowledge articles related to this issue.

We started installing E89.25 on over 100 devices last week. We are upgrading from E89.05 with preboot and FDE enabled.
Before the rollout, we ran the 'BootModeReport.ps1' script mentioned in SK185123. Everything was correct.

However, four of the 100 devices were unable to boot after the upgrade.
The preboot literally loops: Login screen -> Entering credentials -> Login screen...
Windows won't appear, no matter what we do.

Tweaking the BIOS settings, such as disabling secure boot, doesn't change the behaviour. Selecting various entries in the boot menu had no effect either. The only way we found to boot Windows was to decrypt the entire drive using a recovery USB. Then we noticed in Windows that Endpoint hadn't upgraded to E89.25. We need to uninstall E89.05 and then start with E89.25.

This issue is problematic/deadlock for remote workers.
We paused rollout for now.

Has anyone experienced the same issue and found an easier solution?

OS: Windows 11 24H2
Device: Dell Latitude Series
UEFI 2023
Secure Boot State: InProgress (E89.25 is required for it to succeed).

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