Files on File Server locked by "another user" when user opened

Gary Gu-ext 10

We found few users unable to open files on share folders , it will display opned by "another us" , our security teams said to restart this service "SMS Agent Host" , yeah after restart this servie the files could be opened but the next day the same issue even we restart PC . It was issued one week ago. It seems MS defender issue , when defender scan files it will be locked but no release this file . So what we should do next step for PC client.

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paul levey 0 Reputation points

2026-11-02T05:50:16.54+00:00

trading tokens
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paul levey 0

[HttpPost("diagnose-upload")]

public async Task<IActionResult> DiagnoseUpload()

{

var request = Request;

if (!request.HasFormContentType)

{

    return BadRequest(new

    {

        request.ContentType,

        request.ContentLength

    });

}

var form = await request.ReadFormAsync();

return Ok(new

{

    request.ContentType,

    request.ContentLength,

    FormValues = form.ToDictionary(

        item => item.Key,

        item => item.Value.ToArray()),

    Files = form.Files.Select(file => new

    {

        file.Name,

        file.FileName,

        file.ContentType,

        file.Length

    })

});

}

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paul levey 0 Reputation points

2026-11-02T05:49:08.8+00:00

windows 10
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paul levey 0 Reputation points

2026-11-02T05:49:51.8233333+00:00

good yes
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Files on File Server locked by "another user" when user opened

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