Software Updater update installation fails with error: « signature was invalid » or « failed to validate the download file »

Issue:

Elements Endpoint Protection or Business Suite (Client Security or Server Security) Software Updater update installation fails with error: "signature was invalid" or "failed to validate the download file"

This error occurs only for specific updates, for example:

• 7-zip
• Zoom,
• Mozilla Firefox
• Google Chrome

What do if Software Updater patch installation 
 

Resolution:

This error is shown usually when installation on unsigned updates has not been allowed from the settings. 

For Elements Endpoint Protection Agent devices, you can allow unsigned updates from the Elements profile:

1. Log in to the Elements Security Center portal
2. Navigate to the Security configurations > Profiles page
3. Open the profile that is in use on the devices
4. Go to the Software Updater settings page
5. Scroll down to the Installation section
6. Disable Install only signed updates 
7. Click Save profile 

For Client Security and Server Security devices, you can allow unsigned updates via the Policy Manager policies:

1. Log in to the Policy Manager Console
2. Select a host or policy domain from the domain tree
3. Open the Settings tab
4. Navigate to the Windows > Software updater settings page
5. In the General section, enable:
   1. Allow unsigned updates automatic installation
   2. Allow unsigned updates manual installation 
6. Distribute the policy (Ctrl + D)