Ich habe nun eine Anleitung gefunden, allerdings kann er den ESP32 nicht löschen:

esptool.py v4.8.1
Found 1 serial ports
Serial port COM3
Connecting......................................
COM3 failed to connect: Failed to connect to ESP32: No serial data received.
For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html

A fatal error occurred: Could not connect to an Espressif device on any of the 1 available serial ports.