Remote raspberry pi using putty on windows 10

Good day dev!
Can someone help me to remote my raspberry pi 4b using putty on my windows 10. Sorry im having a hard time to find find my raspberry pi ip address.
What im doing is
First, i flash dietpi armv8 to sd card using rufus.
2nd, I’d didn’t plug the sd card on my rpi4 yet or should i plug sd card and boot it first?
3rd, i plugged the lan cable on my rpi and my desktop on a same router.
Then i install putty.
What should i do next?
Hope everyone here understand me.
Thanks.

Without a booted OS the device will not get an IP.
You wanna run the first boot setup via SSH?
Then you need to have a look into your router / DHCP server to see which IP the device gets assigned, or you edit dietpi.txt on the boot partition to preset the network interface settings.
Or you connect a keyboard and display, run the first boot setup and then execute ip a to find out the IP address.

The you can just start putty and login with the default password.
https://dietpi.com/docs/install/#4-first-logon-on-dietpi

Thanks man. I used advanced ip scanner and i found ip address for raspberry pi.

usually you should see IP address somewhere on your router, once DietPi has been booted.

I see btw thank you.