Using Build 16299 in a modern environment is generally discouraged because it no longer receives . It is primarily used today by enthusiasts for "retro" builds on older hardware or by developers testing legacy software compatibility.

Only download build 16299 from official Volume Licensing channels. If you must use a third-party source, validate every byte. For everyone else: stay on supported versions (Windows 10 22H2 or Windows 11) and leverage virtual machines for legacy compatibility needs.

Now you are safe to connect to a controlled network (e.g., a VLAN without internet).