Because Microsoft’s licensing terms forbid redistribution of modified Windows ISOs, you will find Tiny 10 on Microsoft.com. The only official source is the creator’s Internet Archive page.
: Lacks built-in Windows Security; as a third-party ISO, it carries inherent trust risks. windows tiny 10 iso
For daily use on old hardware, consider or official Windows with debloat tools (e.g., Chris Titus WinUtil, O&O ShutUp10++). They provide 90% of the performance gain without the security nightmare. as a third-party ISO