Support Assist doesn't install on my Dell Latitude 55440

Hello.

I haven't been able to use Dell Support Assist on my laptop since Saturday.

I've already formatted the computer twice, and the problem persists.

I've tried installing the previous BIOS version and uninstalling Windows quality updates, but the problem persists.

I've also tried uninstalling Support Assist with Bulk Uninstaller, which scans hidden folders and also deletes things from the registry, but nothing.

I don't know what the problem could be that's causing the problem.

The OS is Windows 11 24H2 26100.1742.

The problem is that when I try to install it, it disappears and goes into the background, but it never finishes installing all the necessary add-ons the application needs to run.

I've already performed a clean uninstall of everything related to Dell!

I look forward to your suggestions.

Same problem here, fresh installation never ends.

I found a log with errors of the latest installation file. They just drop out a problematic verison on air :)) CONGRATS DELL

Log path:
C:\ProgramData\Dell\SupportAssist\Agent\logs\installer\installer.txt

I found some errors: 

Culture Resource Issue: The installer is trying to load resources for the "en-GB" (English - Great Britain) culture but cannot find the corresponding resource file (Dell.SupportAssist.Client.SupportAssistInstaller.Resource.en_GB.Resource.resources). This file should either be embedded in the installer assembly or available as a satellite assembly.

Fallback Failure: Normally, if a specific culture (e.g., en-GB) isn’t available, the installer should fall back to a neutral culture (e.g., "en" or "en-US"), but this fallback is failing, causing the application to crash with an unhandled exception.

WPF Dependency: The System.Windows.Markup.StaticExtension error suggests this is a WPF (Windows Presentation Foundation) application, and the missing resource is likely tied to UI elements (e.g., text strings, buttons) that can’t be rendered.

2025-03-19 21:06:01,573 [4.8.0.24312] [19232 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.ViewModel.AppViewModel - Installer launched with args - legacyautoupdate, /l+, C:\Users\ultra\AppData\Local\Temp\SupportAssistAgent\df49092b-25c3-4165-afcf-17f60e61d83b\msp.log
2025-03-19 21:06:01,737 [4.8.0.24312] [19232 - 1] ERROR Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - Exception occured at mainwindow: Provide value on 'System.Windows.Markup.StaticExtension' threw an exception.
2025-03-19 21:06:01,757 [4.8.0.24312] [19232 - 1] ERROR Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - Error occured at LoadMainWindow: Could not find any resources appropriate for the specified culture or the neutral culture.  Make sure "Dell.SupportAssist.Client.SupportAssistInstaller.Resource.en_GB.Resource.resources" was correctly embedded or linked into assembly "SupportAssistInstaller" at compile time, or that all the satellite assemblies required are loadable and fully signed.
2025-03-19 21:06:01,760 [4.8.0.24312] [19232 - 1] ERROR Dell.SupportAssist.Client.SupportAssistInstaller.App - Unhandled Exception Message Initialization of 'Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow' threw an exception.. Exiting Application with return code: error
2025-03-19 21:06:16,590 [4.8.0.24312] [8748 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.ViewModel.AppViewModel - Installer launched with args - legacyautoupdate, /l+, C:\Users\ultra\AppData\Local\Temp\SupportAssistAgent\df49092b-25c3-4165-afcf-17f60e61d83b\msp.log
2025-03-19 21:06:16,775 [4.8.0.24312] [8748 - 1] ERROR Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - Exception occured at mainwindow: Provide value on 'System.Windows.Markup.StaticExtension' threw an exception.
2025-03-19 21:06:16,794 [4.8.0.24312] [8748 - 1] ERROR Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - Error occured at LoadMainWindow: Could not find any resources appropriate for the specified culture or the neutral culture.  Make sure "Dell.SupportAssist.Client.SupportAssistInstaller.Resource.en_GB.Resource.resources" was correctly embedded or linked into assembly "SupportAssistInstaller" at compile time, or that all the satellite assemblies required are loadable and fully signed.
2025-03-19 21:06:16,795 [4.8.0.24312] [8748 - 1] ERROR Dell.SupportAssist.Client.SupportAssistInstaller.App - Unhandled Exception Message Initialization of 'Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow' threw an exception.. Exiting Application with return code: error
2025-03-19 21:10:05,335 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.ViewModel.AppViewModel - Manufacturer Value : Dell Inc.
2025-03-19 21:10:05,345 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.ViewModel.AppViewModel - Process Arguments : esupport
2025-03-19 21:10:05,345 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.ViewModel.AppViewModel - Installer Started with Arguments: esupport. UI visible: True
2025-03-19 21:10:05,348 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.Utilities.ProjectDetails - Fetching Project Type from : C:\Users\ultra\Downloads\FrameworkAgents\ProjectType.xml
2025-03-19 21:10:05,348 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.ViewModel.AppViewModel - Current Culture being Set: en-US
2025-03-19 21:10:05,457 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - >>Mainwindow - Ctr.
2025-03-19 21:10:05,524 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - Load the MainWindow
2025-03-19 21:10:05,524 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - Mutex Created New : True
2025-03-19 21:10:05,527 [4.3.0.52594] [14836 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - HandleFirstInstance Started
2025-03-19 21:10:05,788 [4.3.0.52594] [14836 - 8] ERROR Dell.SupportAssist.Client.Utilities.RegistryUtilityExtn - HKEY_LOCAL_MACHINE\SOFTWARE\Dell\SupportAssist ProManage : Not exists
2025-03-19 21:10:05,788 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - All prerequisite product check passed
2025-03-19 21:10:05,788 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.Utilities.ProjectDetails - Fetching Project Type from : C:\Users\ultra\Downloads\FrameworkAgents\ProjectType.xml
2025-03-19 21:10:05,797 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.SupportAssistInstaller.AutoUpgradeHelper.CheckForAutoUpdate - Downloading catalog from FTP
2025-03-19 21:10:05,799 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.Utilities.DirectoryUtility - C:\Users\ultra\AppData\Local\Temp\SupportAssistAgent\588e0573-ef6b-4c9d-b02f-abaed61740ae has any file links or is it a Junction: False
2025-03-19 21:10:06,036 [4.3.0.52594] [14836 - 19] INFO Dell.SupportAssist.Client.DownloadManager.DownloadManager - Started the download of the file : SUPPORTASSISTAGENTCATALOG.CAB | Total Size: 15858 | Current Size: 0
2025-03-19 21:10:06,137 [4.3.0.52594] [14836 - 18] INFO Dell.SupportAssist.Client.DownloadManager.DownloadManager - Server did not return the partial content. So, resume capability is not supported for the file : SUPPORTASSISTAGENTCATALOG.CAB
2025-03-19 21:10:06,144 [4.3.0.52594] [14836 - 7] INFO Dell.SupportAssist.Client.DownloadManager.DownloadManager - File Name: SUPPORTASSISTAGENTCATALOG.CAB | Is Signature Valid: True
2025-03-19 21:10:06,145 [4.3.0.52594] [14836 - 7] INFO Dell.SupportAssist.Client.DownloadManager.DownloadManager - File SUPPORTASSISTAGENTCATALOG.CAB has been downloaded successfully.
2025-03-19 21:10:06,155 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdateWrapper - C:\Users\ultra\AppData\Local\Temp\SupportAssistAgent\588e0573-ef6b-4c9d-b02f-abaed61740ae\SUPPORTASSISTAGENTCATALOG.CAB Is Extraction Successful : True
2025-03-19 21:10:06,156 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.SupportAssistInstaller.AutoUpgradeHelper.SupportAssistInstallerPackage - Checking for any Dot Net or ASP Dot Net Runtime(s) Upgrade
2025-03-19 21:10:06,225 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdate - Inclusion and Exclusion conditions satisfied
2025-03-19 21:10:06,225 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdate - Inclusion conditions satisfied: True and Exclusion conditions satisfied: False
2025-03-19 21:10:06,225 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdate - Product that will be installed is serviceability/client/SupportAssistInstallerNew.exe
2025-03-19 21:10:06,226 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdate - Product Installation/Upgrade Available : True
2025-03-19 21:10:06,236 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.SupportAssistInstaller.AutoUpgradeHelper.SupportAssistInstallerPackage - Installed Dot-Net Utilities are up-to-date, Checking for SA Installation
2025-03-19 21:10:06,239 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.SupportAssistInstaller.Installer - Installed Version: 4.6.3.23467
2025-03-19 21:10:06,240 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.SupportAssistInstaller.AutoUpgradeHelper.CheckForAutoUpdate - Checking for availability of any Higher Version; ProjectType Consumer
2025-03-19 21:10:06,273 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdate - Inclusion and Exclusion conditions satisfied
2025-03-19 21:10:06,273 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdate - Inclusion conditions satisfied: True and Exclusion conditions satisfied: False
2025-03-19 21:10:06,273 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdate - Product that will be installed is serviceability/client/SupportAssistInstallerNew.exe
2025-03-19 21:10:06,273 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.AutoUpdateUtilities.AutoUpdate - Product Installation/Upgrade Available : True
2025-03-19 21:10:06,274 [4.3.0.52594] [14836 - 8] INFO Dell.SupportAssist.Client.SupportAssistInstaller.AutoUpgradeHelper.SupportAssistInstallerPackage - Starting to download SupportAssist from FTP Server
2025-03-19 21:10:06,569 [4.3.0.52594] [14836 - 18] INFO Dell.SupportAssist.Client.DownloadManager.PartialFileManager - Parti

How to download older versions of SupportAssist?

Has your dell support plan expired? @Rango39 

Mine has expired and simply not being able to install the basic software for my product to perform basic updates is simply unacceptable.

Terrible quality, after 1 year of use the keyboard on my laptop simply doesn't work anymore, one click turns into several clicks, it only works if you click hard.

My family and I will never buy from Dell again.

Hi Overgunner!

Thanks for the information.

Yes, my computer's warranty is expired.
When I contacted support by phone, they refused to help me for this reason. Company policies.

What can be done? That's how things are.

At the moment, I only have Dell Command Update installed.

I'll run the hardware checks from the BIOS in the meantime.

Try this solution,

https://www.dell.com/community/en/conversations/xps/supportassist-wont-install-and-i-cant-see-any-manual-driver-downloads/6537e8131ce58e46aa33e9a3?commentId=653e92b5ea4fe00b019ca3e4

enter here:

https://www.dell.com/support/home/en-us?app=drivers

Select your product and do not download the file after online checking, cancel it to see the tab "Find Specific Drivers"


Download all drivers available for your product and try again. 

Install alienware command center as well.

Restart as much as need and at the end try install support assist again (Clean installation - remove everything before - not drivers).

Im on my way to finish the manual drivers installation, I'll let you know!

keep in touch

After update all drivers manually and do a clean installation, the SupportAssist still not working.

Its installed with only 106mb (normally is 0.98gb) but does not appears as installed in windows 11:



Processor 12th Gen Intel(R) Core(TM) i7-12700H   2.30 GHz
Installed RAM 16.0 GB (15.7 GB usable)
System type 64-bit operating system, x64-based processor

Just ridiculous

After the previous attempt to install SupportAssist (It closed by itself and there was no process running) I noticed that my hard drive space was decreasing by itself, after while the SupportAssist installation was finished without any UI feedback.

Latest installation that works:

I do not know what solve the problem, but find below some infos:

Clean all win temp folder that you can remember, like:
C:\Users\%USERNAME%\AppData\Local\Temp

1 - Changed win region to United States

2 - Changed win region format to English (United States)

3 - Update win

4 - Remove all dell softwares (restart)

5 - Update BIOS manually from dell drivers website mentioned above.

6 - Install Windows Universal Application from dell drivers website mentioned above.

7 - Install Alienware Command Center 6.x from dell drivers website mentioned above.

8 - Install SupportAssist from https://www.dell.com/en-us/lp/dt/supportassist-for-home-pcs

9 - Even if the installation closes by itself, restart OS!

10 - Observe HD size changes, if decreasing, wait until you see the installations above appear (image)

Super Painful Path, Good Luck @Rango39 

Keep in touch!!!

@Rango39 

I just posted an answer that probably solved my problem, but after refreshing the page it disappeared.

It's amazing how Dell is so intent on getting in the way

Hi Overgunner!

Yesterday I formatted two Dell Latitude 5440 computers and installed Windows 11 24H2, and the same thing happened to me with Dell Support Assist.

Given the above, I decided not to install that program and opted to install Dell Command Update Windows Universal Application 5.4.0 and Dell Optimizer 6.0.2.0 (it only checks the battery status and allows you to choose the computer's thermal management).
Dynamic Loading doesn't allow you to choose which one is best suited for the machine's use; Dell Optimizer "learns" from how the user uses the notebook.

I'll wait until Dell takes action on the issue with the application they developed.

Thanks for your reply.

Best regards.

Hi Overgunner!

Yesterday I was able to install the new version of Support Assist 4.8.1.27758.

It's worth noting that I previously had .NET Runtime 8.0.14 and .NET Desktop Runtime 8.0.14 installed.

The OS build is 26100.3476 [Windows 11 24H2]

When you download the link, make sure it's the version of Support Assist mentioned above (https://www.dell.com/en-us/lp/supportassist-for-home-pcs)

Thanks for all the information provided and shared.

Best regards!

P.S.: You can close this post as 'Resolved'.

Well done Rango Sam @Rango39 

It sounds like the issue you're experiencing with Dell Support Assist on your laptop might be due to an inappropriate Windows license. Ensure that your Windows 11 24H2 is properly activated and licensed. You can check the activation status by going to Settings > System > Activation. If your Windows license is not valid, it could cause various software issues, including problems with installing applications like Dell Support Assist.

@Harrier Panels​

It sounds you just like to denigrate instead of trying to bring a real solution for a real matter exposed in this thread.

First of all, the Dell Support Assist software is far away from perfection, including its hardware and much less Windows OS.

Secondly, I bought this machine through a bundled purchase that Dell promotes with Microsoft to sell the Windows OS along with some specific parts. I can't buy a super Dell with Linux; they impose a completely abusive bundled sale.

And finally my OS is valid... kudos...

@Overgunner​

Hey Overgunner, you’re right, my bad. Disregard my previous answer. It looks like the Windows license isn’t the issue here. Dell SupportAssist should install even on trial versions of Windows. The key seems to be updates. Make sure you’ve installed all the latest updates for your Windows 11.

I successfully installed the latest SupportAssist on my Win 11 Pro 24H2 (OS Build 26100.4652) after installing all updates. Hope this helps!