Default [Q] Verizon HTC One formatted system

I'm really stuck - been trying to fix this all day.

I was tired, while trying to do a factory reset, I wiped the system. I can use fastboot and adb, although I get warnings about not be able to find the device. the folders are not mounting.

From all the reading I've been doing, I believe I need to select the correct RUU and re-format the system. Then, I should be able to side-load an image file.

However, I'm stuck - either the instructions I'm finding are linking to missing files or tools, or they just aren't working.

Can anyone help??

Thanks in advance.