How to: Registry settings for generating Verbose log

Please make sure you have following registry keys set on you computer.

32-bit:

HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindowsInstaller

64-bit:

HKEY_LOCAL_MACHINESOFTWAREWow6432NodePoliciesMicrosoftWindowsInstaller

String value name: Logging 

String value data:   microwaveup!

原文地址:https://www.cnblogs.com/cindy-hu-23/p/4347926.html