Four failures! Vary frustrating! However, after reading through many replies, I came up with a plan that worked. One respondent mentioned 'anti-virus' and a light went off. My desktop (where the failures occurred) has three(!) active anti-virus/anti-malware programs running all the time. (I know - not advised - but it usually causes no problems, and it DOES keep me bug-free.) I fired up a laptop with only Windows Defender running, went through the process again, put the downloaded file on the USB flash drive, then executed - SUCCESS!
If you are experiencing Error Code: 0x80042405 - 0xA001A, try a different compter with a different anti-virus program (and only one running). This may work for you, too.