C:\Windows\system32>cd /d E:\mysql-8.0.15-winx64\bin
E:\mysql-8.0.15-winx64\bin>mysqld --initialize --console
2020-05-17T04:09:42.241622Z 0 [System] [MY-013169] [Server] E:\mysql-8.0.15-winx64\bin\mysqld.exe (mysqld 8.0.15) initializing of server in progress as process 3232
2020-05-17T04:09:42.262303Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be analias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
2020-05-17T04:09:52.431875Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: ,ZgSpsrzt0fd
2020-05-17T04:09:53.619812Z 0 [System] [MY-013170] [Server] E:\mysql-8.0.15-winx64\bin\mysqld.exe (mysqld 8.0.15) initializing of server has completed