Just a quick note: Latitude 5300 is having exactly the same problem with new BIOS-version 1.33.1. Updating from Dell Command Update fails because the exe-file is not signed. DELL: please remove the 'Community accepted solution' from this thread. Answer from Pellusin on dell.com
Dell
dell.com › support › kbdoc › en-us › 000206452 › dell-update-du-tool-fail-to-upgrade-bios-on-computers-having-bios-admin-password-configured
Dell Update Tool Fails to Upgrade BIOS on Computers Having BIOS Admin Password Configured | Dell US
On Dell Client computers where the BIOS is configured with Admin password, the DU tool is not able to upgrade the BIOS on the computer. DU displays "Installation Complete: X (number of updates) updates failed" where the BIOS was selected to be installed and failed.
Reddit
reddit.com › r/sccm › dell command update not updating bios to latest version
r/SCCM on Reddit: Dell Command Update not updating BIOS to latest version
February 16, 2024 -
This technically isn't a SCCM issue, but I figure the SCCM subreddit will have more knowledge and experience than other subreddits.
I'm working on setting up Dell Command Update for the first time to download drivers and update the BIOS as part of my OSD task sequence. I followed this guide to setup DCU and the modifications to the TS: https://alteredadmin.github.io/posts/how-to-update-dell-drivers-and-bios-during-sccm-osd/
Everything seems to work well, but looking at the BIOS version and the log produced by DCU, it doesn't appear to be grabbing the latest version of BIOS available. For example, a Latitude 5430's latest BIOS version is 1.19.0, and is marked as critical. However, DCU pulled and installed 1.17.1. I could see it not pulling a recommended version, since it's not "critical," but it skipped a critical and a recommended to choose an older critical version.
Running DCU in the freshly-imaged OS also doesn't report that there's a newer version to install. It's better than nothing, but this is confusing me why it's not pulling the latest BIOS version.
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So, my command is: cmd /c dcu-cli.exe /applyupdates -updatetype=bios,firmware -reboot=disable -forceUpdate=enable -outputlog=c:\temp\DCULog-EXE-BIOS.log And yeah, my 5430s are pulling that too. I don't think it's an issue of what you're doing, but I think it's too new: The 1.19.0 just came out. Either by design or... 'bad design', DCU lags behind 'when the full release hits'. So I would say it's... 'normal'.
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I think you didn't get the latest as it was only released yesterday from what I saw on Dell site. As someone said above it can take several days before you actually get it when scanning had this happen already as well. Also some model with very old bios sometimes need to do a two step bios upgrade to get the latest version (not the case for your model with this number as it installed 1.17)
BIOS fails to install with Dell Command Update but can be installed manually
I have Dell Command Update installed on all of the Dell Latitude's I support and am seeing that the BIOS update to 1.18.0 fails to install from DCU on the Latitude 5540s but will install if I downl... More on dell.com
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December 20, 2024Dell Command update fails to download BIOS for Dell Precision 3570
We are seeing an issue with Dell Command Update (v5.4) with one particular download (bios v 1.25.0)Activity log states that the file is not signed. File downloads fine using URL in the log, a... More on dell.com
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October 9, 2024Dell Command Update failing to install Bios update
Trying to install the bios update, but it fails. In the logs it states that the update is not signed, Could\Would that be the reason? 5.4.0.36 More on dell.com
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September 2, 2025Dell Command Update fails to update BIOS on Latitude 5350
Dell Command Update (5.2.0) fails to upgrade BIOS on Latitude 5350. We use SCCM in our setup to the OS - and in our task sequence there is a step running DCU - first checking for BIOS and firmware ... More on dell.com
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April 29, 2024Videos
r/Dell on Reddit: DELL BIOS UPDATE FAIL
Tutorial on force flash the BIOS | Dell US
How to update the BIOS | Dell US
How to update Dell BIOS | Dell US
02:30
Dell Command Update // First Run FAIL 😬 - YouTube
r/Dell on Reddit: the bios is not updated
Dell
dell.com › dell community › laptops › latitude
The installation of BIOS updates using the Dell Command Update v5.1.0 has failed. | DELL Technologies
January 10, 2024 - We utilize Dell Command Update Windows Universal Application v5.1.0 for all our Dell laptops and desktops, to update BIOS and drivers. The BIOS update process has encountered failures when attempted through both the Dell Command Update GUI and CLI, and this issue has been observed across various ...
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Just a quick note: Latitude 5300 is having exactly the same problem with new BIOS-version 1.33.1. Updating from Dell Command Update fails because the exe-file is not signed. DELL: please remove the 'Community accepted solution' from this thread.
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Noticed in the activity log during the download process that the update file isn't signed. Hopefully a quick fix.
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We have the same problem and it's driving me nuts. We also tried downloading the file from the URL and verified that the signature is valid. Everything installs just fine, it just can't update the BIOS. We also tried different versions of DCU, but no dice. This seems to be new, we've been using DCU to update our dell bioses since forever without any errors. Here's our log from a Latitude 5340: 5.4.0.36 DellCommandUpdate Normal 2024-10-09T11:23:12.9271518+02:00 Update.Operations.UpdateOperation.Download Downloaded 'Dell Latitude 5340 System BIOS' [31271376 Bytes] 5.4.0.36 DellCommandUpdate Normal 2024-10-09T11:23:12.9995378+02:00 Update.Operations.UpdateOperation.Download Package 'Dell Latitude 5340 System BIOS' [https://downloads.dell.com/FOLDER11984943M/1/Latitude_5340_1.16.0.exe] is not signed. 5.4.0.36 DellCommandUpdate Normal 2024-10-09T11:23:13.0005346+02:00 Update.Operations.UpdateOperation.Download Failed, deleting Package 'Dell Latitude 5340 System BIOS' [FOLDER11984943M/1/Latitude_5340_1.16.0.exe] 5.4.0.36 DellCommandUpdate Normal 2024-10-09T11:23:13.1777124+02:00 Update.Operations.UpdateOperation.Apply [1] package(s) could not be downloaded. 5.4.0.36 DellCommandUpdate Normal 2024-10-09T11:23:13.1777124+02:00 Update.Operations.UpdateOperation.Apply Package 'Dell Latitude 5340 System BIOS' not downloaded, skipping apply 5.4.0.36 DellCommandUpdate Normal 2024-10-09T11:23:13.1787092+02:00 Update.Operations.UpdateOperation.Apply Found [0] installable package(s)
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We are getting the same error. DCU 5.4.0 on a Latitude 5530. Any news Dell?
Dell
dell.com › dell community › desktops › optiplex desktops
Dell Command Update failing to install Bios update | DELL Technologies
September 2, 2025 - The reason seems to be the "is not signed" status of the BIOS Update.
Dell
dell.com › dell community › laptops › latitude
Dell Command Update fails to update BIOS on Latitude 5350 | DELL Technologies
April 29, 2024 - Dell Command Update (5.2.0) fails to upgrade BIOS on Latitude 5350. We use SCCM in our setup to the OS - and in our task sequence there is a step running DCU - first checking for BIOS and firmware ...
Dell
dell.com › support › kbdoc › en-us › 000108963 › how-to-use-and-troubleshoot-dell-command-update-to-update-all-drivers-bios-and-firmware-for-your-system
How to Use Dell Command Update to Update All Drivers, BIOS, and Firmware For Your Computer | Dell US
Dell Command Update prepares for a driver restore. This may take several moments. You must extract the driver cab for the specific computer onto a USB drive or other location. The CAB file can be loaded to baseline the Device Manger and prepare the computer for a full update check by specifying the location. You can export a complete report of all current drivers, firmware, and BIOS versions by selecting System Information on the left side of the main screen, then selecting Export.
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Experiencing the exact same problem. I have to add that a first run of dell command update found 4 updates; 3 drivers and the latest BIOS. It successfully installed the driver updates, but it shows a failure of the installation of the BIOS update. After that installation failure Dell Command Update does not find the latest BIOS update anymore, although the website does. It is almost like Dell Command Update thinks the latest BIOS has been installed, although it is not. Tried clearing Dell temp dirs to no avail. Also found older threads experiencing the same issue 2 years ago, with no viable solution.
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Just want to add that we already deleted c:\programdata\dell folder and rerun Dell Command Update with no success, still no Bios update.
Dell
dell.com › dell community › desktops › inspiron desktops
BIOS update always fails | DELL Technologies
November 1, 2023 - What exactly is "DBUtilDrv2 Device" that seems to be causing the issue? Thanks for any help! ... @BK_Comm Is BitLocker enabled on this PC? You must (temporarily) disable BitLocker before you can install a BIOS update.
Dell
dell.com › support › kbdoc › en-us › 000216539 › bios-update-through-windows-update-fails-on-computers-with-a-discrete-graphics-processing-unit-gpu
BIOS Update Through Windows Update Fails on Computers with a Discrete Graphics Processing Unit (GPU) | Dell US
Workaround: The current workaround is to manually suspend BitLocker and then reboot the computer. Windows will then attempt the BIOS update on reboot. Open a Command Prompt with Admin Rights (The Command Prompt: What It Is and How to Use It on a Dell System).
Reddit
reddit.com › r/dell › problem with dell command update , bios update fails.
r/Dell on Reddit: Problem with Dell Command Update , BIOS update fails.
September 13, 2019 -
So Dell Commad Update tells me there is an available Bios update. Fine, I want to update the Bios.
It warns me that the power adapter and other equipment (like my Docking station) must be unplugged to uptade the BIOS. However, when I unplug I get another warning telling me that the update cannot be installed without the Power adapter plugged in. So I plug it in, ignore the first warning and click update... Then after a while, it tells me the update failed.
Anyone know of a solution to this problem?
EaseUS
easeus.com › computer instruction › dell bios update failed: why it happens & how to fix?
Dell BIOS Update Failed: Why It Happens & How to Fix?
July 4, 2025 - The "Dell BIOS update failed" problem may arise due to a corrupted BIOS file or power failure. The issue may also occur following a hardware failure or downloading an incompatible BIOS file.
Dell
dell.com › dell community › laptops › vostro
Why is BIOS update failing? | DELL Technologies
February 15, 2025 - So then I accessed that partition and replaced the bios recovery file with the updated version but could not get it to do a recovery from that newer version. Suspcious that the file sizes were very different I stumbled upon this article which talks about extracting the actual bios image from the executable (https://www.dell.com/support/kbdoc/en-uk/000130691/bios-recovery-steps-for-a-no-post-issue-on-alienware-aurora-r5-r6-r7-r8-r9-r11-and-xps-8910-8920-8930-pcs). The command line switches in this post produced errors, which led me to try /? and that gave me /s /r as switches with which to run the bios executable from within Windows (I booted into Win10 for this).
MiniTool Partition Wizard
partitionwizard.com › home › partition manager › what should i do if dell bios update failed?
3 Popular Solutions to Dell BIOS Update Failed Issue
December 3, 2024 - Restart the Dell PC and then press F12 when the Dell logo screen appears. This will open the boot menu. Choose USB Storage Device as the one-off boot device and then press Enter. If the OS on the USB drive has Graphical User Interface, you can ...
Dell
dell.com › support › kbdoc › en-us › 000275742 › bios-update-error-or-update-gets-stuck-on-windows-24h2
BIOS Update Error or Update Gets Stuck After Windows January 2025 Update | Dell US
The issue occurs after installing the January update from Microsoft. Windows 11 24H2 KB5050009 (OS Build 26100.2894) or later · Windows 11 23H2 KB5050021 (OS Builds 22621.4751 and 22631.4751) or later · Windows 10 22H2 KB5049981 (OS Builds 19044.5371 and 19045.5371) or later · Below symptoms may occur while installing the latest BIOS on your computer: Error in SupportAssist: Something went wrong during installation, and we couldn't complete it · Error : Driver Version Fail !
Dell
dell.com › dell community › software › productivity software
Dell Command Update will not let me enter/set a BIOS Password. Also, I cannot run as Administrator | DELL Technologies
March 29, 2025 - I've tried multiple fresh installs of Dell Command Update 4.1 and 4.2.1 and attempted a BIOS update. There is a BIOS password set, so the update fails - The fix for this is to set a BI...
Ten Forums
tenforums.com › drivers-hardware › 191195-trouble-updating-bios-dell-computer.html
Trouble updating BIOS on Dell computer Solved - Windows 10 Forums
February 11, 2022 - If it refuses then we might need ... taskkill command to end it]. 8.6 If the Bios update entry is not there or if you have managed to end it, restart yet again & recheck....
Dell
dell.com › dell community › desktops › optiplex desktops
Critical BIOS update fails | DELL Technologies
April 27, 2021 - Trying to install this critical update using the Dell Command Update from the Start menu always gives a failure. This is a relatively new update for my Optoplex 7780 AIO and is running just fine. Any suggestions? ... Updating the BIOS from Windows Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system.
Dell
dell.com › dell community › desktops › optiplex desktops
BIOS update failed as password is not configured | DELL Technologies
November 17, 2022 - @jiceman hi there, this helped me out. first set a bios password. then update the dell command update software first. restart the app as admin after update. then go to settings (gear icon at top right), bios, then enter your bios password.