portal.azure.com reports Unsupported Browser when running Edge

Fixed Issue #14771998


Steve D.
Nov 21, 2017
This issue is public.
Found in
  • Microsoft Edge
Found in build #
Reported by 1 person

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Steps to reproduce

UA string the user is seeing:
Mozilla/5.0 (MSIE 9.0; Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299

When I go to: https://portal.azure.com

I get the message "The Azure portal doesn’t support your Browser". I get a similar message when I sign in to visual studio on-line.

I am running:
Microsoft Edge 41.16299.15.0
Microsoft EdgeHTML 16.16299

When I follow the link for supported browsers Edge is listed as supported.

It is sad that I have to run Chrome in order to use Microsoft web sites.

I have seen web sites and youtube videos that address the issue by running powershell scripts as administrator to uninstall and re-install Edge. Do you really want your customers to have to do that?


Comments and activity

  • Microsoft Edge Team

    Changed Assigned To to “Steven K.”

  • Hi Steve,

    This would definitely be a bug and not what we want our customers to experience.  I am not sure why you are getting that message.  I will investigate would could be causing this issue.

    Can you tell me the extended version of Windows 10 you are using?  Win +S and type ‘winver’ and hit enter.  Thank you for providing the Edge Versions.

    Appreciate you reporting this,

    Steve K

  • Microsoft Windows Version 1709 (OS Build 16299.64).

  • More info…
    I went to "https://www.whatismybrowser.com
    The system reports “Edge on Windows 10”
    Under “More info about your system:”
    Extra Info

    • 64-bit Edition
    • Pretending to be Internet Explorer 9
      (I just noticed that pretending part) How do I turn that off?
  • Can you please go to http://www.whatsmyua.info/ and copy the string there into this bug? Thanks!

  • According to useragent v2.1.9:
    rawUa: Mozilla/5.0 (MSIE 9.0; Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299
    family: Edge
    major: 16
    minor: 16299
    patch: 0
    device: Other 0.0.0
    string: Windows 10 0.0.0
    family: Windows 10
    major: 0
    minor: 0
    patch: 0

    According to ua-parser-js v0.7.11:

    ua: Mozilla/5.0 (MSIE 9.0; Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299
    name: IE
    version: 9.0
    major: 9
    name: WebKit
    version: 537.36
    name: Windows
    version: NT 10.0
    model: undefined
    vendor: undefined
    type: undefined
    architecture: amd64

    According to platform.js v1.3.3:
    name: Microsoft Edge
    version: 16.16299
    layout: EdgeHTML
    os: Windows 10 64-bit
    description: Microsoft Edge 16.16299 on Windows 10 64-bit

  • Microsoft Edge Team

    Changed Assigned To from “Steven K.” to “Tom B.”

  • Thanks! It’s strange that you have the MSIE 9 token in your UA… that’s likely why sites are thinking that your browser is old/unsupported. Let me get this bug over to one of our devs. He should be able to point you to a few potential fixes. 

  • Would it be possible for you to dump a few of your registry keys for us to look at?

    1. From Start > Run, type regedit2. In the navigation bar at the top, enter Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent and press Enter
    2. Right click on the highlighted key and press “Export”
    3. Save the key to disk
    4. Repeat steps 2 and 3 for Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent
    5. Attach both registry keys to this bug

    Please note that it’s possible that only one of the above keys will exist. Thanks!

  • There is no folder in regedit under HKCU for “User Agent” just a string value:

    User Agent REG_SZ
    Mozilla/4.0 (compatible; MSIE 8.0; Win32)

    In case it matters… My computer started as Windows 8.0 and was upgraded as new versions came out. I think I am on the latest version of Windows 10.

  • First: The “Start > Run” terminology sounds like a description for someone running Windows 7. There is no start menu, there is no “run” listed anywhere in the windows 10 menus. If I press the button combo “widows r” I get a run command window… which is what you were probably looking for.
    Second: From the Run" dialog, if I type the command "regedit2", I get the message "Windows cannot find 'regedit2’. Make sure you typed the name correctly, and then try again.
    Having some windows experience I know that I can type “regedit” and get to the registry editor.

  • Microsoft Edge Team

    Changed Status to “Confirmed”

  • Sorry about that. I’m still used to typing “Run” in the search box in the start menu to get to the Run dialog, and it looks like some of the formatting got messed up on my last comment (hence regedit2 instead of regedit). 

    Based on some conversations I had with our dev team, it sounds like we need a bit more information to investigate this further. Would it be possible for you to paste the contents of this key in both HKCU and HKLM:

    “Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent” as well? 

    Thanks and happy holidays!

  • I have attached the registry entries requested.

    FYI: I am a software developer and have Visual Studio 2013, 2015, and 2017 (in case there is any useful information I can query using those tools). I am not a web developer and have not tweaked any registry settings to do with web browsers, but have installed Microsoft development tools.

  • Microsoft Edge Team

    Changed Steps to Reproduce

  • Thanks! Sometimes it’s possible for other applications you install to affect certain reg keys and tweak your UA string, however, we’re not seeing that in any of the keys you’ve sent over so far. For the Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent key that you just attached, did your machine also have a value set in HKCU? It looks like the only key that was attached was the HKLM one. If you could check for both of the keys in HKCU as well, that would be great. Thanks again!

  • I must have been holding my mouth wrong when I attached them before. They should be there now, see:


  • Microsoft Edge Team

    Changed Assigned To to “Tom B.”

    Changed Status from “Confirmed” to “Fixed”

  • No worries! Thanks for reattaching them. Turns out this issue was caused by the fact that this key has the following value on your machine:

    Settings\5.0\User Agent]



    We also saw this key, which has an incorrect value as well:

    Settings\5.0\User Agent\Post Platform]


    If you delete these keys, the issue should be resolved. Do you mind giving that a shot and letting us know if it resolves the issue? We’re also working on a fix to remove these legacy registry reads from Edge, so other users won’t run into the same issue. Thanks again for working with us to get this resolved! If you run into any other issues, please feel free to reach out!

  • I renamed the “User Agent” registry path to "Bad User Agent".

    That seemed to resolve the issue.

    When you have “fix” I can change the name back to verify.

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