Default [Q] Newb MaximusHD10.0.0 install help needed

1, unable to get past this step for MaximusHD10.0.0...."fastboot flash recovery TWRP2.6.1.0.img"
get "unknown error" in command prompt window
fixed this one. note for other newbs command line should read "fastboot flash zip"

2, attempted to re-flash and start over MaximusHD10.0.0 install. unable to locate Maximus zip in recovery though it is seen in downloads while booted.?
resolved, file was corrupted!

TMO One S Ville S4
super CID 11111111
S off, finally! thanks to Moonshine

thank you,