Odd 'Program name' when installing signed msi installer [duplicate]

Answer 1

Add /d option to the command line of signtool.exe when signing your MSI:

signtool.exe /d "Your Software Name"

UAC confirmation dialog will show Your Software Name as the Program name.

Answer 2

If you Authenticode-sign your .msi package, Windows will show that as the name. Otherwise, you get MSI's temporary copy of it, which has a random name.