dcupgrade.ps1

Install-windowsfeature AD-domain-services,DHCP,DNS

Install-ADDSDomainController -CreateDnsDelegation:$false  -DomainName 'tf.com' -InstallDns:$true  -NoGlobalCatalog:$false -SiteName 'Default-First-Site-Name' -NoRebootOnCompletion:$true -Force:$true -DatabasePath 'C:\Windows\NTDS' -SysvolPath 'C:\Windows\SYSVOL' -LogPath 'C:\Windows\NTDS'

netdom query fsmo

Move-ADDirectoryServerOperationMasterRole -Identity DC02-NEW -OperationMasterRole SchemaMaster, DomainNamingMaster, PDCEmulator, RIDMaster, InfrastructureMaster

Export-DhcpServer -File C:\DHCPdata.xml -Leases -Force -ComputerName old.network.local –Verbose

Import-DhcpServer -File C:\DHCPdata.xml -BackupPath C:\DHCP\ -Leases -ScopeOverwrite -Force -ComputerName new.network.local –Verbose

# Connect and deauthorize old and authorize new
# Don't forget to change the DNS server address

# Run locally
Uninstall-ADDSDomainController -DemoteOperationMasterRole -RemoveApplicationPartition

# Wait so all transition to new dns
Set-ADDomainMode –identity tf.com -DomainMode Windows2016Domain
Set-ADForestMode -Identity tf.com -ForestMode Windows2016Forest

Get-ADDomain | fl Name,DomainMode
Get-ADForest | fl Name,ForestMode