Support Assist installation fails: Certificate validation

Here also that happened.

"Installation canceled.
We encountered an unexpected error while installing SupportAssist. This may be due to a host internet connection. Check your connection and try again."

My Internet connection is perfect.
The Dell can not create a flawless Support application.

N060PSPCVN3568EMEA01

DELL Vostro 15 3568

Ask for support, or I'll send the laptop back.

Thanks.

@DellFanHungary

Please look up what SupportAssist Installer writes to Windows logs (https://www.howtogeek.com/123646/htg-explains-what-the-windows-event-viewer-is-and-how-you-can-use-it/).

You'll find it in "Windows Event Viewer > Windows Logs > Application".

Copy and paste it here please.

Had exactly the same thing this morning:  SupportAssist ran perfectly a week ago, then refused to launch this morning.  Tried re-installing with these errors from the EventViewer:

"Exception occurred in while processing ValidateCertificateSignature requestwith exception as : Cannot find the requested object."

"SupportAssistCertificateValidationFailed - 7 : Certificate validation failed for SupportAssist"

Dell, what did you do???

I'm having this exact same problem on my brand new optiplex 5050 computers, just started today. Happens when I try to update my SupportAssist. I was able to update it just fine on a couple of my machines just yesterday though. I'm wondering if it has something to do with todays windows updates?

My log entries from event viewer:

SupportAssistAgent, event ID 0 - Starting Download of : https://downloads.dell.com/serviceability/catalog/SupportAssistAgentCatalog.cab

SupportAssistAgent, event ID 0 - Starting Download of : https://downloads.dell.com/serviceability/catalog/SupportAssistAgentCatalog.cab

SupportAssistAgent, event ID 0 - Exception occurred in while processing ValidateCertificateSignature requestwith exception as : Cannot find the requested object.

SupportAssistAgent, event ID 0 - SupportAssistCertificateValidationFailed - 7 : Certificate validation failed for SupportAssist

SupportAssistAgent, event ID 0 - Application Exit Code: 16

Exact same issue on two Optiplexes, one 7050 and one 7060. New SupportAssist installs.

Same issue.

XPS 13 9370

Windows 10 1803

PER DELL SUPPORT
THIS HAS BEEN ESCALATED TO L3 SUPPORT TEAM


SAME Dell Assist Error 

When trying to install I get the same error- Unexpected error due to internet connection. 

This is what my event log registers  for ERRORS:

Exception occurred in while processing ValidateCertificateSignature requestwith exception as : Cannot find the requested object.

and

Exception occurred in while processing ValidateCertificateSignature requestwith exception as : Cannot find the requested object.

Inspiron 5570
Intel (R) Core (TM) i7-8550U CPU @1.8GHZ 1.99GHZ
12.0 GB RAM
Windows 10 HOME
Version 1803
OS. Build 17134.165

Okay, me problem has been solved, i just got the update from Microsoft Store.
Repair has taken place, without touch.

Thanks for the fast action.

FIXED

I deleted Dell Assist from ADD/REMOVE programs and Dell Assist plugin.. 

Then went to start and typed DELL SUPPORT and from there I clicked assist and downloaded the new one and it worked and allowed me to launch the program.

Today the problem is gone for me as well.

Here's a section of my logs:

DIFXAPP: INFO: user SID of user performing the install is 'S-1-5-21-1220945662-854245398-1708537768-24184'.^M
DIFXAPP: INFO: opening HKEY_USERS\S-1-5-21-1220945662-854245398-1708537768-24184\Software\Microsoft\Windows\CurrentVersion\DIFxApp\Components\{24F1AC76-82C0-44B3-8FCA-4CAFD5832470} (User's SID: 'S-1-5-21-1220945662-854245398-1708537768-24184') ...^M
DIFXAPP: INFO: ENTER: DriverPackageInstallW^M
DIFXAPP: INFO: Installing INF file 'C:\Program Files\Dell\DellDataVault\Drivers\DellProfile\DellProf.inf' (Plug and Play).^M
DIFXAPP: INFO: Could not open file C:\Windows\System32\DriverStore\FileRepository\dellprof.inf_amd64_aeae084b0fece244\dellprof.inf. (Error code 0x3: The system cannot find the path specified.)^M
DIFXAPP: ERROR: PnP Install failed. (Error code 0x3EE: The volume for a file has been externally altered so that the opened file is no longer valid.)^M
DIFXAPP: INFO: Attempting to rollback ...^M
DIFXAPP: INFO: No devices to rollback^M
DIFXAPP: INFO: RETURN: DriverPackageInstallW (0x3EE)^M
DIFXAPP: ERROR: encountered while installing driver package 'C:\Program Files\Dell\DellDataVault\Drivers\DellProfile\DellProf.inf'^M
DIFXAPP: ERROR: InstallDriverPackages failed with error 0x3EE^M
DIFXAPP: RETURN: InstallDriverPackages() 1006 (0x3EE)^M
CustomAction MsiInstallDrivers returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)^M
MSI (s) (54:BC) [11:23:54:079]: Note: 1: 2265 2: 3: -2147287035 ^M
MSI (s) (54:BC) [11:23:54:080]: User policy value 'DisableRollback' is 0^M
MSI (s) (54:BC) [11:23:54:080]: Machine policy value 'DisableRollback' is 0^M
Action ended 11:23:54: InstallFinalize. Return value 3.^M

I've tried to install multiple ways ... from the Dell web site, from Windows Store, etc. and I continue to get this message.  I've tried uninstalling and reinstalling.

how to solve this problem