"This app has been blocked for your protection" warning when installing Pix4D desktop applications on Windows 10

Error

"This app has been blocked for your protection". 

Windows_warning.jpg

Description

The company that issued the certificate used for signing the MSI installation files of Pix4D desktop applications declared bankruptcy a few days ago.
This means that if your version of Windows is up to date, Microsoft puts this certificate issuer on a blacklist and therefore the signed software could not be installed or uninstalled.

 
Information: This is only a warning and does not present an actual threat when using the software. Keep in mind that we recommend using the official installation files downloaded from the Pix4D download page.

Solutions

 
Important: The proposed solutions might not work if a Pix4D desktop application with the expired certificate is already installed. In this case, we recommend first uninstalling the software using administrator rights as described in 3. Uninstalling a Pix4D desktop application with the old certificate before installing other versions.

1. (Recommended) Download and install a Pix4D desktop application with the new certificate 

The following versions have the new certificate and are not blocked by Windows 10:

2. Installing a Pix4D desktop application with the old certificate

This workflow applies for all versions besides 4.2.27, 4.3.24, 4.3.33, 4.4.10 and 1.3.0 (Pix4Dfields).

 

Instead of directly opening the .msi, install the software using administrator rights:

  • Locate the .msi file.
  • Copy the full path of the .msi file. To copy the full path, hold shift while right-clicking on the file and select Copy as path.
  • Open the Start Menu on Windows.
  • Search for Command Prompt.
  • Right click on the Command Prompt icon in the Start Menu.
  • Select Run as administrator.
    Command_promp.jpg
  • Copy the full path of the .msi file into the Command Prompt.
    Command_prompt.jpg
  • Press Enter to install the software.

3. Uninstalling a Pix4D desktop application with the old certificate

(Recommended) Download and install a Pix4D desktop application with the new certificate (4.3.33 or 4.4.10). This way the version with the old certificate will be automatically removed.

 

(Optional) It is possible to uninstall the software using administrator rights:

  • Open the Start Menu on Windows.
  • Search for Command Prompt.
  • Right click on the Command Prompt icon in the Start Menu.
  • Select Run as administrator.
    Command_promp.jpg
  • Type wmic and press Enter.
  • (Pix4Dmapper) Type product where name="Pix4Dmapper" call uninstall and press Enter.
  • (Pix4Dfields) Type product where name="Pix4Dfields" call uninstall and press Enter.
  • If prompted, type Y to confirm uninstalling the program, and press Enter.
    Command_prompt_uninstal_1l.jpg
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2 comments

  • Jim Bui

    I'm a first time demo user, and this error really didn't help getting started.  Had a hard time finding this post without additional keywords such as UAC or User Account Control.  Once I found this post, I got Pix4D Mapper desktop to install.  Consider adding a date somewhere in the article so users know if this is a recent bug or when it's fixed?

  • Blaž (Pix4D)

    Hi Jim, 

    Thank you for the comment.

    We just released a new version of the software that contains the new certificate.

    I recommend downloading and installing one of the latest versions of the software (4.2.27, 4.3.33 or 4.4.10) where the issue is solved.

    Best,

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