Connect to Exchange Online PowerShell using MFA

[Jason Rhodes]

Hi,

I'm trying to follow the instructions on this page: https://technet.microsoft.com/en-us/library/mt775114(v=exchg.160).aspx

which all seem pretty easy to follow. I'm on a brand new install of Windows 10 Pro, and when I try to run the file I download from Exchange Admin I get the error in the image attached.

I've tried this on a few Win 10 Pro PC's, some brand new some a few months old, I get the same issue.

What's the correct way to overcome this so I can install?

This is the error that's in the log file:

ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of E:\Microsoft.Online.CSE.PSModule.Client.application resulted in exception. Following failure messages were detected:
+ Deployment and application do not have matching security zones.

[#2 · Accepted solution]

That's the joy of running those click-once apps...

Try re-donwloading/installing it via IE, see if it makes a difference. If it still doesnt work, you probably have some restrictions set on the IE zones that prevents the app from running. Running .Net code needs to be enabled for example.

[#3]

Thanks for that @Vasil Michev. I read the instructions very cleary and at no stage did they stipulate that it had to be downloaded / run via IE. As soon as I did that it worked perfectly, and I was able to login with my MFA enabled account.

I assume this is the only PowerShell app I can use for this purpose and I can't now use my other PowerShell ISE for MFA also?

[#4]

omg! I was strugling with exatly the same thing today.. strange that it does not work with other browsers.

Anyhow! i got the module now and im happy :)

[#5]

To use MFA PowerShell in ISE you could try the following. 

- download and install the MFA PowerShell from the Exchange Online Admin Center (hybrid tab)

- then run the following in ISE whenever you connect 

$CreateEXOPSSession = (Get-ChildItem -Path $env:userprofile -Filter CreateExoPSSession.ps1 -Recurse -ErrorAction SilentlyContinue -Force | Select -Last 1).DirectoryName

. "$CreateEXOPSSession\CreateExoPSSession.ps1"

- this will replicate whatever happens in the MFA PowerShell in ISE 

- Connect via: 

Connect-EXOPSSession -UserPrincipalName user@domain.com

[#6]

The problem is in the first step, download and install. Indeed *only* possible using IE.

Sigh... Thanks for your answer @Vasil Michev 

[#7]

Thanks @Vasil Michev . You saved the day.

[#8]

Yes ,right.

Even if I download file from chrome, it cannot work then it shows error like below, 

But when I download it from internet explorer , it can show message then you click install button.

Then you can see it like this.