> For the complete documentation index, see [llms.txt](https://docs.greytrix.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greytrix.com/gumu-sage-crm-integration/sage-x3/installation-guide/pre-requisites/operating-system-requirements.md).

# Operating System Requirements

GUMU™ setup should be installed on the Sage CRM server. The following versions of Operating systems are preferred or supported by Sage CRM and Sage X3.

* Microsoft Windows Server 2022 Standard
* Microsoft Windows Server 2025 Standard

*The preferred browser is Google Chrome as recommended for Sage CRM.*