When getting this error through Visual Studio it was because there was a signing certificate setup to match the computer it was originally developed on. You can check this by going to the project properties > signing tab and checking the certificate details. You can uncheck “Sign the ClickOnce manifests” to disable signing. If you … Read more
Use the /d command line argument with the required program name when executing signtool to sign the msi. It appears that the windows installer creates a temporary copy of the msi file and assigns it a generated name before running it. If you don’t use /d with signtool, you get to see the temporary filename … Read more
I had the same issue but installing the Windows 8.1 SDK as per Catquatwa’s answer did not work for me (signtool.exe was still missing from C:\Program Files (x86)\Microsoft SDKs\Windows\vX\Bin). I stumbled across this solution: http://www.benedykt.net/2015/08/12/missing-signtool-exe-w-visual-studio-2015/ Basically, for VS 2015, this would be: Open Programs and Features Select “Microsoft Visual Studio 2015” and click “Change” Press … Read more