Err.exe: A Tool for Error Code Lookup
When it comes to debugging one of the tools I've found essential is err.exe. Err.exe is a command line utility developed by Microsoft which allows you to input an error code, be it decimal, hexadecimal or a string value, and receive any Windows OS errors which correspond to that error code. Here's a simple example: Here we've passed in 1609 which err.exe tells us corresponds to ERROR_INSTALL_FAILURE. Err.exe is great for quickly looking up error code when debugging an issue and is generally much faster than looking up the error code online. I believe Err.exe comes as part of the Windows SDK, you can also download a standalone version here: https://www.microsoft.com/en-us/download/confirmation.aspx?id=985.