Seizing FSMO Roles

https://www.windowspro.de/andreas-kroschel/fsmo-rollen-im-ad-schema-uebernehmen

as Domain Admin (not a User with Domain Admin role)

ntdsutil
 
roles
fsmo maintenance: connections
server connections: connect to server j-dc01
Binding to j-dc01 ...
Connected to j-dc01 using credentials of locally logged on user.
server connections: q
fsmo maintenance: seize schema master
.
.
.

Roles

seize infrastructure master Infrastruktur-Master
seize naming master Domänennamen-Master
seize PDC PDC-Emulator
seize RID master RID-Master
seize schema master Schemamaster