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Windows Server 1903 is Generally Available for Download

The Microsoft team is continuously working on releasing new features on their platforms. Now they released Windows Server 1903 with exciting new features and capabilities. In this article will share you the details of the new features and functionality of this latest release of Windows Server. Let’s check the new features of Windows Server 1903 GA .


  • 1.4 GHz 64-bit processor
  • Compatible with x64 instruction set
  • Supports NX and DEP
  • Supports CMPXCHG16b, LAHF/SAHF, and PrefetchW
  • Supports Second Level Address Translation (EPT or NPT)
  • 512 MB (2 GB for Server with Desktop Experience installation option)
  • ECC (Error Correcting Code) type or similar technology, for physical host deployments
  • Computers that run Windows Server 2019 must include a storage adapter that is compliant with the PCI Express architecture specification.
  • Persistent storage devices on servers classified as hard disk drives must not be PATA. Windows Server 2019 does not allow ATA/PATA/IDE/EIDE for boot, page, or data drives.
  • 32 GB Storage space required
  • An Ethernet adapter capable of at least gigabit throughput
  • Compliant with the PCI Express architecture specification.
  • UEFI 2.3.1c-based system and firmware that supports secure boot
  • Trusted Platform Module – If using certain features such as BitLocker
  • Graphics device and monitor capable of Super VGA (1024 x 768) or higher-resolution

New Features 7 Enhancements 

  • Windows Server Containers
  • New Storage Migration Features
  • SetupDiag and Update Rollbacks
  • Windows Admin Center
  • Server Core App Compatibility
  • Microsoft Defender Advanced Threat Protection (ATP) improvements

Windows Server Containers

The new version supports containers and Kubernetes also the support is being carried over to the Azure Kubernetes Service (AKS).

This includes:

  • Support for pods of Windows containers and Linux containers on Windows (LCOW) on Azure.
  • With Kubernetes v1.14, Windows SErver node support is officially upgraded from beta to a stable release.
  • Tigera Calico is now GA as part of Tigera Essentials subscription and offers both non-overlay networking and network policy across mixed Linux/Windows environments.
  • Stability improvements for overlay networking support for Windows containers, including integration with Kubernetes through the latest release of Flannel and Kubernetes v1.14.

Windows Admin Center

Windows Admin has to download and installed to Windows Server 1903. A new release of Windows Admin Center is available for download with the latest capabilities baked in. The Storage Migration service continues to get better with the ability to migrate Windows 2008 and Windows 2008 R2 file shares to Azure. Version 1904 is the most recent GA release that introduces the Azure Hybrid Services tool, and brings features that were previously in preview to the GA channel.

Server Core App Compatibility

Microsoft Server Core is more secure, has less moving parts and is becoming more compatible than ever. One of the major complaints with Server Core is the compatibility limitations. Microsoft has been doing a lot of work in this space with Server Core especially with the release of the Feature On Demand or FoD. The Feature On-Demand or FoD is the package of installables that allows greatly extending the compatibility and features of Server Core. In Windows Server 1903, Microsoft has added Task Scheduler and Hyper-V Manager to Server Core installations, allowing even greater flexibility for installing Server Core.

New Storage Migration Features

Storage Migration has gotten even better with the Windows Server 1903 released. It provides a graphical tool that inventories data on servers, transfers the data and configuration, and validates the migration process. New to Windows Server 1903, Storage Migration includes the following added features:

  • Migrate local users and groups to the new server
  • Migrate storage from failover clusters
  • Migrate storage from a Linux server that uses Samba
  • More easily sync migrated shares into Azure by using Azure File Sync
  • Migrate to new networks such as Azure

SetupDiag and Update Rollbacks

The SetupDiag utility has been updated to version 1.4.1 and available. SetupDiag is a command-line tool that can help diagnose Windows Update failures. Windows Server 1903 has added rollback improvements with Windows Updates. Servers will now automatically recover from startup fialures by removing updates if the startup failure was as a result of a recent driver or quality update. This feature requires Server Core with the Windows Recovery Environment partition configured.

Microsoft Defender Advanced Threat Protection (ATP) improvements

New improvements to Microsoft Defender Advanced Threat Protection (ATP) include the following enhancements:

  • Attack surface area reduction that allows enabling web protection and defining allow and deny lists for specific URLs and IPs
  • Next generation protection – This includes protection against attacks including ransomware, credential misuse, and attacks that are propogated using removable storage.
  • Microsoft Defender ATP next-gen protection technologies include:
  • Advanced Machine Learning that help to protect against apex attackers using vulnerability exploit techniques, tools and malware
    Emergency outbreak protection provides automatically updated intelligence when a new outbreak is detected
  • Certified ISO 27001 compliance – Ensures cloud service has been analyzed for threats, vulnerabilities, and impacts. It helps to ensure that risk management and security controls are in place.
  • Geolocation support – Supports sovereignty of data and configurable retention policies to help satisfy requirements of such compliance regulations as GDPR, etc

Refer to what’s new in Windows Server version 1903 in Windows Server docs.