Type cmd into the Windows Explorer address bar and hit to launch Command Prompt directly in that directory.
If you have ADB and Fastboot Tools installed on your PC, you can manually execute these commands to wipe a locked device : fastboot erase userdata fastboot erase tool password best
If you need to bypass Google Account (FRP) after using fastboot erase, specialized tools are required. Type cmd into the Windows Explorer address bar
But to write to the partition, he needed to be in Fastboot. And to use Fastboot commands effectively, he needed the password. he needed the password.