Windows subsystem for Linux: In the latest version of the server operating system, Microsoft focuses on much better integration of the Linux system. This is reflected in both enhanced security concepts such as "Shielded VMs" and the ability to manage a Linux server from Windows servers using Linux commands. Added to this is the integration of the Linux distribution in the Windows installation.Cooperation with Microsoft Azure: Effective cooperation with Microsoft Azure enables Windows Server 2012 R2, in addition to simplified data synchronization, also easy backup using Azure Backup.Better end-to-end protection: To optimize the protection of critical data, Microsoft has modified the encryption of data and file servers. Additional security is ensured by direct cooperation of the server operating system with Windows Defender Advanced Threat Protection (ATP). Thanks to this mechanism, the system recognizes threats such as rootkits and zero-day exploits, which are not detected by many traditional antivirus programs.Express Updates: With the transition to Windows Server 2012 R2, lengthy downloads and installations or constant reboots are a thing of the past. As in the Windows 10 desktop operating system, Microsoft focuses on express updates here.