Error Forticlient After Upgrade 6.4.XX to 7.0.XX

[kanum]

Hi there,

So after upgrade forticlient from version 6.4.8 or 6.4.9 or 6.4.10 to forticlient (any version) of 7.0.XX to 7.2.XX, I starting have issues with FortiAMSI.dll:

C:\Program Files\Fortinet\FortiClientx86\FortiAmsi.dll is not designed to run on Windows or it contains an error. Try reinstalling the program using the original installation data or contact the system administrator or software vendor for support. Error status 0xc0000428.

Is randomly in some PCs, starting from Windows 10 - vs. 1909

Fortinet support means that Microsoft will have to resolve this. I don't believe that Microsoft does it, "per client" and not on a global level.

Does anyone have a similar problem? I ask the question here, that someone may have had a similar problem, and found a solution. We have added ticket at Microsoft, since, in principle, it will be Microsoft's issue/problem.

[patelr]

Hello @kanum ,

Can you share some screenshots related to issue of FortiClient AntiMalwareScanInterface ?

Do you use licensed version of FortiClient or free version?

Can you verify certificate details as in the screenshot ?

This issue has been tracked with Microsoft Ticket Number #2310270060003398.

Please review Microsoft articles about same issue https://learn.microsoft.com/en-us/windows/win32/amsi/antimalware-scan-interface-portal, https://answers.microsoft.com/en-us/windows/forum/all/problems-with-fortiamsidll-after-70x-forticlie...

Thanks. 
Ronak Patel

[kanum]

Hi there,

Here is scan interface of AntiMalwareScanInterface.

> Do you use licensed version of FortiClient or free version?

Using enterprise license.

The certificates are ok.

That: https://answers.microsoft.com/en-us/windows/forum/all/problems-with-fortiamsidll-after-70x-forticlie...

As been added by our partnership.

https://learn.microsoft.com/en-us/windows/win32/amsi/antimalware-scan-interface-portal

I have check and Fortiamsi existing under "providers" at Predefinied.