Error "Failed Signature verification" while attempting to update via CF10 Administrator

Question

When you attempt to apply any hot fixes via the ColdFusion 10 Administrator you continuously get:

Error occurred while installing the update:
Failed Signature verification

You may have even validated the files and manually and placed them in the hf-updates directory at which point the CF10 admin page still shows the "Install" option, but again you receive the same error.

Answer 1

This error means you've forgotten to apply the ColdFusion 10 Mandatory Update which updates the certificate used to validate install packages.

From Adobe's website:

All ColdFusion updates are now signed with the new code signing certificate because of a code signing certificate revocation. This mandatory Update ensures that your current installation of ColdFusion 10 is updated with the new code signing certificate. This update is also required for proper functioning of the auto update functionality in ColdFusion 10. Adobe strongly recommends that you apply this update.

Once the update has been installed (you can find the JAR install instructions here) the service will be restarted and you will be able to apply subsequent updates via the ColdFusion administrator.

Edit: Run the command prompt as Administrator:

Navigate to your jar file, and run the following command to run jar file:

D:\>java -jar cf10_mdt_updt.jar