Download platform-tools and extract the folder somewhere, then open CMD as an administrator.
It is recommended to keep this window open and use it throughout the entire guide.
Replace
path\to\platform-tools
with the actual path to the platform-tools folder, for example C:\platform-tools.
cd path\to\platform-tools
Replace
path\to\moddedtwrp.img
with the actual path of the image
fastboot boot path\to\moddedtwrp.img
adb shell mkfs.ntfs -f /dev/block/by-name/win -L WINONEPLUS
adb shell mkfs.fat -F32 -s1 /dev/block/by-name/esp -n ESPONEPLUS