Upgrade Domain Controller from Windows Server 2019 to 2025 (In-Place Upgrade)

Upgrade Domain Controller from Windows Server 2019 to 2025 (In-Place Upgrade)

In this complete hands-on tutorial, you’ll learn how to perform an in-place upgrade of an Active Directory Domain Controller from Windows Server 2019 to Windows Server 2025 safely and step by step.

This production-focused tutorial is designed for System Administrators, Windows Server Engineers, Infrastructure Engineers, IT Professionals, and students who want to modernize their Active Directory infrastructure while keeping the existing Domain Controller in place.

What You’ll Learn in This Video:

✅ Is in-place upgrade supported for Domain Controllers?
✅ Pre-upgrade planning and production readiness checks
✅ Active Directory health validation before upgrade
✅ Verify replication health using repadmin
✅ Run dcdiag diagnostics
✅ Confirm FSMO role ownership
✅ Check DNS, SYSVOL, NETLOGON, and Group Policy health
✅ Verify forest and domain functional levels
✅ Full backup and rollback planning
✅ Windows Server 2025 compatibility validation
✅ Mount installation media and start in-place upgrade
✅ Upgrade options and installation walkthrough
✅ Multiple reboot process explained
✅ Post-upgrade validation and service checks
✅ Confirm Active Directory functionality after upgrade
✅ Validate DNS, authentication, replication, and Group Policy
✅ Troubleshooting common upgrade issues
✅ Production best practices and warnings

Tools & Commands Covered:
dcdiag
repadmin /replsummary
repadmin /showrepl
netdom query fsmo
Get-ADForest
Get-ADDomain
Event Viewer
DNS Manager
Active Directory Users and Computers
Active Directory Sites and Services
PowerShell
Server Manager
Perfect For:
Active Directory modernization
Domain Controller upgrades
Windows Server infrastructure upgrades
Microsoft enterprise administration
Production AD maintenance
IT admin learning

⚠️ Critical Note: Always validate supportability, take full backups, and thoroughly test before performing in-place upgrades on production Domain Controllers.

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YouTube – Labs Hands On
Vikas Singh
📧 vikas.9452@gmail.com

Видео Upgrade Domain Controller from Windows Server 2019 to 2025 (In-Place Upgrade) канала Labs Hands On