There seems to be a lot of confusion in the air around either how to unlock your bootloader or how to install a new recovery.
I am writing this as a very easy step by step guide to do all the things necessary to get your new HTC One X ready to acc...
i also had this same problem after flashing my first custom rom on the n4, and i also run windows 7 Ultimate x64
here is the process i use for full clean installation of device
goto SETTINGS > STORAGE > (menu) USB Computer Connection
Standard adb functions work on the main menu of twrp
Here is the easiest method.
On your pc go to your toolkit directory
Find the folder that has adb.exe in it
Copy your new Rom to this directory and rename it rom.zip (for simplicity)
Hold shift ...
Think of A/B as a kind of dual boot.
Almost every piece of the system is duplicated.
When you are in android you are in system A.
If you get an OTA it patches system B.
When you reboot it loads into system B.
If update is fine you will now use sys...
From what I have learnt. Don't have my PC at moment so can't give exact details.
There are several partitions before the start of mmcblkp01 which are invisible once booted into android.
These contain various things such as partition layouts, cid,...