Hi. I'm David, and I'm happy to help you.
Since the file was never opened or executed, and both Microsoft Defender and the Microsoft Safety Scanner now report the system as clean, there is no reason to worry.
The automatic download you observed was likely a "drive-by download" triggered by a malicious advertisement or redirect on a website, which does not mean your PC was infected. A Trojan typically requires execution to cause harm. The system remains secure because no execution occurred, meaning the malware never had the chance to run or modify system files. Furthermore, Microsoft Defender detected it and removed the threat immediately, and subsequent full scans have confirmed that no remnants or secondary infections are present. As a precaution, you can clear your browser's cache to completely remove any temporary scripts or files stored during the automatic download.
Feel free to ask any questions you may have.