Botg site admin "The hash doesn't match because the filename doesn't match." A fully descriptive answer is that they don't have a checksum for the bundled package but botg doesn't want to say this. " Dangerously ignorant user. Not matching filename = the checksum is NOT for that file. Checksums can only be provided for the non-bundled packages, because they're static. Bundled installers are not." Dangerously ignorant…
You think this is bad, you should try the Windows 10 auto updater.
Disclaimer: It's broken on my brand new PC and no helpful on-line fix has worked so far. So I might hold hate in my heart.