Change log on user

Dear CNC Gurus - need your advice ->
Our JDE 9.2 E920 B9 Network service is started under .\JDE user (Windows server, 2012 R2). We would like to change logon user to another domain user, for example OURDOMAIN\JDEDOM.
Is it possible?
If yes, what steps should be done? Shall we also create JDEDOM in the database (we are on MS SQL 2012)

Thanks!
Yuri