I am not a Windows expert. however, I would suggest to make sure that the WebDav (Web client) service is running and log on as a
Local Service and its startup type is set to
Besides that, I also recommend checking this article We’re having a problem opening this location in File Explorer, Add this web site to your Trusted Sites list and try again that provides guidelines and solutions for Open With Explorer issue in SharePoint.
Is there any progress on this issue?
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