Direct OS upgrade 2016 Domain Controller to Windows 2019 (for lab environment - single domain)

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Direct OS upgrade 2016 Domain Controller to Windows 2019 (for lab environment - single domain)
1. Prepare
- DC1 : Domain Controller(Yi.vn - running OS Windows Server 2016 Datacenter) | A DVD Windows Server 2019 install insert to D:
2. Step by step : Direct OS upgrade DC1 to Windows Server 2019
- DC1 : Direct OS upgrade to Windows Server 2019
- Click File Explorer - Right-Click 'This PC' - Properties # Check OS version
- Start - cmd, type : netdom query fsmo # Check roles
- Server Manager - Tools - Active Directory Users and Computers - Right-Click Yi.vn - Raise domain functional level... # Check current domain functional level
- Start - cmd - Right-Click cmd - Run as administrator, type D: - cd support - cd adprep
+ adprep /forestprep # Prepare for forest upgrade
+ Type 'C' # To confirm
+ adprep /domainprep # Prepare for domain upgrade
+ adprep /domainprep /gpprep # Prepare for domain policy upgrade
- Go to D: - Double-Click setup.exe - Choose 'Not right now' - Choose 'Windows Server 2019 Datacenter (Desktop Experience)'(or you want)
- Accept - Choose 'Keep personal files and apps' - Install - Restart - ... - Finish
- Click File Explorer - Right-Click 'This PC' - Properties # Check OS version
- Start - cmd, type : netdom query fsmo # Check roles
- Server Manager - Tools - Active Directory Users and Computers - Right-Click Yi.vn - Raise domain functional level... # Check current domain functional level
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