Data directory C:\data\db\ not found

Well, I copied the original config file and renamed it from mongod.cfg to mongod.conf and changed port:

# mongod.conf

# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# Where and how to store data.
storage:
  dbPath: D:\develop\DB\MongoDB\Server\4.2\data
  journal:
    enabled: true
#  engine:
#  mmapv1:
#  wiredTiger:

# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path:  D:\develop\DB\MongoDB\Server\4.2\log\mongod.log

# network interfaces
net:
  port: 27027
  bindIp: 127.0.0.1

#processManagement:

#security:

#operationProfiling:

#replication:

#sharding:

## Enterprise-Only Options:

#auditLog:

#snmp:

Both config files are in the same directory…but that shouldn’t cause problems, should it?
Still I have a non responding prompt.
Did I understand you right, that MongoDb uses C:\data\db as default? …how does this work with the service running properly under windows althought this directory doesn’t exist?