How do I reset FP Open OS?

I deleted everything. As I wanted a complete new start.
Yes I was in fastboot mode.
So, (Teilerfolg) I unzipped the manual-userdebug… and started flash.bat… but I didn’t work. I then moved all the files into the same folder as the fastboot.exe. Then it worked. I will change this wiki to make it simpler.
Then installed Xposed and my emojiis (@Roboe: thanks)
Now to the setup.
Thanks for your support.