---
type: entity
title: Microsoft Windows 10/11
tags: ["os", "microsoft", "software", "operating-system"]
related: ["kms", "intranet-connectivity", "windows-10-esu", "device-management-system"]
created: 2026-07-01
updated: 2026-07-01
sources: ["output/rz_uni_greifswald_de_support_faq_software_betriebssystem_windows_10_aktivierung.md", "output/rz_uni_greifswald_de_support_faq_software_betriebssystem_windows_10_support_ende.md"]
---

# Microsoft Windows 10/11

**Microsoft Windows 10** and **Windows 11** are the primary operating systems supported and licensed by the Universität Greifswald for its staff and students. Microsoft Windows is the primary operating system licensed and activated via the URZ.

## Licensing and Activation
Licenses procured through the university are volume licenses. Consequently, these versions of Windows cannot be activated via standard retail keys but must be activated through the university's [[kms]].

The activation process is identical for both Windows 10 and Windows 11, requiring [[intranet-connectivity]] and the use of the `slmgr.vbs` script to communicate with `kms.uni-greifswald.de`.

## Windows 10 Support Lifecycle
Windows 10 reaches its official end-of-support on **October 14, 2025**. After this date, free security updates and fixes will no longer be provided by Microsoft.

### Security Implications
Because unpatched operating systems pose a risk to the institutional infrastructure, the URZ may block network access (Campus-Net and Internet) for any Windows 10 devices that are not receiving security updates after the October 2025 deadline.

## Migration to Windows 11
Devices that are hardware-compatible ("Windows 11 tauglich") are encouraged to migrate to Windows 11. The URZ recommends using the [[device-management-system]] to facilitate this upgrade.