Unable to Download Workflow Manager 1.0 Refresh (CU2) (Error : Downloaded file failed signature verification and may have been tampered with)

Deepak Bisht 1 Reputation point
2021-02-13T12:06:33.497+00:00

Hello

I'm doing Workflow Manager 1.0 Refresh (CU2) installation from web platform installer but below error was showing "Downloaded file failed signature verification and may have been tempered with".

Please suggest as it's very urgent.
67714-windowsworkflow-errors.png

Regards
Deepak Bisht

SharePoint Workflow
SharePoint Workflow
SharePoint: A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.Workflow: An orchestrated and repeatable pattern of business activity, enabling data transformation, service provision, and information retrieval.
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  1. Wendy Li_MSFT 1,711 Reputation points Microsoft Vendor
    2021-02-15T06:46:40.743+00:00

    @Deepak Bisht What OS did you use for the server? Did you meet this issue when doing the same on another server?
    There is a post that discussed this similar issue, the following is quoted from Alexandr's reply in the post, you can check the post for the detailed information:
    "
    Solved the problem as follows:

    1. I took files from the cache from another farm.
    2. Put them in %LocalAppData%\Microsoft\Web Platform Installer\installers
    3. Launched Web PI
    4. A miracle happened! Installation started.
      "

    If this issue still exists, I suggest you create a new thread on the Web Platform Installer community, more professionals will assist you with this issue.

    If an Answer is helpful, please click "Accept Answer" and upvote it.
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    1 person found this answer helpful.
  2. Muhammad Zeeshan Tahir 11 Reputation points
    2021-02-24T16:23:05.357+00:00

    I ran into exactly same problem and was able to solve it.

    Copy the Workfow_Manager.msi from temporary files of WPI and paste it somewhere you can navigate easily through PowerShell and run below command.

    .\Workflow_Manager.msi IACCEPTEULA=yes WEBPI=1

    Later, you must install the CU 5 for WFM.

    Check the complete guide on the solution here.

    1 person found this answer helpful.
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