Basically you need the latest version of HTC driver for your pc, plus latest adb on pc and latest cwm or twrp recovery on your HTC One
It's been a while since I used CWM recovery as I now prefer twrp recovery.
However you seem to have a fairly old version of cwm recovery, I would suggest first flashing a more recent recovery, either cwm or twrp.
Then reboot to recovery, check that your HTC One is seen on pc by typing adb devices
It should list the serial number of your phone.
Then select sideload options in recovery, then follow instructions, which is usually
adb sideload name_of_rom.zip
Hope this helps
Sent from my HTC One using xda app-developers app