SupportAssist is not installing

Question

I have a dell laptop that i just formatted with Windows 11 25H2 and installed Visual-C-Runtimes (2005-2022) and Windows Desktop Runtime 8.0.22. When i try to install SupportAssist, a black screen pop up and disappear and nothing more. I waited for like half hour in case it's running in the background but without any success.

Laptop and OS details:

Windows 11 25H2 - Build 10.0.26200 N/A Build 26200

Laptop Model : Dell Laptop 3510

No dell app or services is installed what so ever

Support Assist Info:

Download Location : https://www.dell.com/en-us/lp/dt/supportassist-for-home-pcs

File name: SupportAssistinstaller

File version: 4.10.1.42635

BIOS Info:

PS C:\WINDOWS\system32>Get-WmiObject -Class Win32_BIOS

SMBIOSBIOSVersion : 1.31.0
Manufacturer : Dell Inc.
Name : 1.31.0
SerialNumber : 5XXXXXXXXX
Version : DELL - 20170001

PS: After digging into log file which was found on (C:\ProgramData\Dell\SupportAssist\Agent\logs\Installer)

2025-11-16 16:32:00,166 [4.10.1.42635] [3444 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.App - Starting SupportAssist Installer
2025-11-16 16:32:00,291 [4.10.1.42635] [3444 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.ViewModel.AppViewModel - Installer launched with args - Dell
2025-11-16 16:32:00,359 [4.10.1.42635] [3444 - 1] INFO Dell.SupportAssist.Client.SupportAssistInstaller.Utility.CheckPlatformUtility - Manufacturer Value : Dell Inc.
2025-11-16 16:32:00,432 [4.10.1.42635] [3444 - 1] ERROR Dell.SupportAssist.Client.SupportAssistInstaller.MainWindow - Exception occured at mainwindow: Provide value on 'System.Windows.Markup.StaticExtension' threw an exception.
2025-11-16 16:32:00,445 [4.10.1.42635] [3444 - 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.
2025-11-16 16:32:00,449 [4.10.1.42635] [3444 - 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

I guess the released version has a problem with internal ref, please advice

lmacri · Answer

Hi GlobalFS:

You might find some helpful information in Herin's 04-Aug-2025 SupportAssist not installing, who had similar error messages logged in their SupportAssistInstaller.exe installation log after performing a fresh Windows 11 v24H2 install on a new hard drive. In particular, see my 14-Aug-2025 reply <here> to szyb in that topic noting that a clean reinstall of their OS might have removed disk files and/or registry entries that allow Dell SupportAssist v4.x to correctly identify the make / model of their computer or Dell Service Tag when the installer runs its initial compatibility check. Fortunately, szyb was still able to use the Dell Update for Windows Universal v5.x app offered on the support page for their Vostro 3681 to check for available updates for their Dell software and hardware drivers.
----------------------------

When I search for "3510" at https://www.dell.com/support/home/en-us/products it lists four different models - Inspiron 15 3510, Latitude 3510, Precision 3510, and Vostro 15 3510. Which model do you own, and has your Dell service warranty expired?

If you open a Run dialog box and enter winver what is the full OS build number of your Win 11 v25H2 OS (the last stable build released on 11-Nov-2025 was KB5068861 / OS Builds 26200.7171), and what do you mean when you say you "formatted with Windows 11 25H2". Dos that mean you performed a clean reinstall of Win 11 v25H2 OS with installation media downloaded from https://www.microsoft.com/en-us/software-download/windows11 that wiped all your third-party apps and data from your system (i.e., including utilities like Dell SupportAssist v4.x that were installed at the factory), or do you mean that Windows Update recently upgraded your system to Win 11 v25H2?

If you open a Run dialog box (Windows key + R) and enter msinfo32 to view your System Information does it show the correct computer manufacturer and model? From my Dell Inspiron 15 5584 with the latest Dell Inspiron 5583/5584 BIOS v1.22.1.

If you enter wmic bios get serialnumber in a command prompt as instructed in the Dell support article Locate Your Desktop's Service Tag does your current Service Tag (which is also your computer serial number) match the Service Tag shown on the sticker on the outside of your computer case? From my Inspiron 5584:

-----------
Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.6575 * Firefox v145.0.0 * Microsoft Defender v4.18.25100.9008-1.1.25100.9002 * Malwarebytes Premium v5.4.4.225-145.0.5428 * Macrium Reflect Free v8.0.7783 * My Dell v2.2.6.0 * Fusion Service 2.2.14.0

SupportAssist for PCs

SupportAssist is not installing

Was this post helpful?