Hello
Thank you for posting in Microsoft Community forum.
Based on the information provided, Fortinet Forticlient software is compatible with Windows Server operating systems, including Windows Domain Controllers and servers in the DMZ. However, as with any software installation, it is recommended to perform a thorough compatibility check and testing before installing it on production servers. It is also important to ensure that the software is configured correctly and does not interfere with other applications or services running on the server. If you have concerns about potential downtime, it may be best to test the installation on a non-production server first.
Best Regards,
Zack Lu