Weird, but sorry again, never tried myself under Windows.
Well, if you can't use ADB, can you use fastboot when you go into the bootloader menu (vol-down)?
In that case you could flash the original Asus ROM via fastboot: download, unzip twice to find the blob and use fastboot to flash that. Once you booted into that you can install recovery again and then flash your favourite ROM.
Otherwise... no adb, no fastboot, external sdcard in the slot won't work and no dock... hmm, can't think of any other options right now, sorry!
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