Note: Disable Hyper-V on Windows 10 if it’s active. Run PowerShell as Admin and use: bcdedit /set hypervisorlaunchtype off then reboot.

The OpenNebula Sandbox is a pre-configured virtual appliance designed to allow users to quickly evaluate the OpenNebula platform without undergoing a complex installation process. Version 5.0 (codenamed "Excalibur") was a significant release that introduced features like LXC containers and improved marketplace integration.

Open your browser and go to the : https://marketplace.opennebula.systems

If the web interface is inaccessible, ensure the Windows Firewall is not blocking the port (temporarily disable to test) and that the VM’s network matches your host’s subnet.

If you face persistent issues with the OVA, consider: