I’m going to close this question as off-topic.
As per the Start Here page for Help and Support where supported releases are mentioned, the only OSes you mention are an off-topic (EOSS/EOL) release of Ubuntu, and Microsoft Windows. Neither are on-topic here.
You can still edit your question, PM moderators if you believe it should be considered for re-opening, but personally I do consider the Support and Help guide pretty clear. I’m not sure you’d be best suited using seeking help from Ubuntu support anyway; if your installed OS wasn’t running a Ubuntu system to begin with (you seem to indicate it may have been Microsoft Windows).
FYI: I am aware that some generic GNU/Linux/Unix type sites provide support for EOL/EOSS releases of Ubuntu, as well as any other Unix/Linux/BSD like system, but again you may do better seeking help from Microsoft Windows users if it’s a Microsoft Windows system you were using.