What can Netinstall be used for?

Netinstall is primarily used for installing or reinstalling the RouterOS software on MikroTik devices. This includes the ability to upgrade to a newer version or downgrade to a previous version, which makes it a versatile tool for managing software versions on MikroTik routers. When using Netinstall, users can choose to install any version of RouterOS that they have available, whether it is a newer edition with additional features or a previous version that might be more stable for their specific setup or needs.

One key feature of Netinstall is that it allows for a complete installation, meaning it essentially resets the device to factory settings. While this is useful for starting fresh, it does not retain previously configured settings or licenses during the installation process. Therefore, it is important to note that upgrading or downgrading via Netinstall may necessitate that users backup their configurations separately if they wish to restore them afterward.

The other options presented focus on aspects such as reinstalling software without losing a license, upgrading firmware while keeping configurations, or restoring deleted files, which do not align with the primary functionalities of Netinstall. Essentially, Netinstall's main purpose revolves around installing different software versions, which encompasses both upgrades and downgrades, making it a crucial tool for MikroTik network administrators.