errase esp8266

So a long time aggo i was testing the esp8266 as a deauther and used an unknown .bin for it and now when i started exploring the arduino world i try to upload a start code:

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

when i upload it and open serial monitor on 74880 i get texts:

 ets Jan  8 2013,rst cause:2, boot mode:(3,7)

load 0x4010f000, len 1384, room 16 
tail 8
chksum 0x2d
csum 0x2d
v8b899c12
~ld

please tell me how to fully errase the esp8266
THanks!

That is perfectly normal. Carry on.