Get USERNAME in Power Query

GetUsername.pq

let
    Source = Folder.Contents("C:\Users"),
    // filter out Public folder as it may be accessed by scripts
    #"Filtered out Public" = Table.SelectRows( Source, each [Name] <> "Public"),
    // sort to get last accessed in the top row
    #"Sort by Date accessed" = Table.Sort( #"Filtered out Public", {{"Date accessed", Order.Descending}}),
    // filter out potential system folders
    #"Expanded Attributes" = Table.ExpandRecordColumn(#"Sort by Date accessed", "Attributes", 
                                {"Kind", "ReadOnly", "Hidden", "System"}, 
                                {"Kind", "ReadOnly", "Hidden", "System"}),
    #"Filtered Kind Folder" = Table.SelectRows(#"Expanded Attributes", each [Kind] = "Folder"),
    #"Filtered ReadOnly" = Table.SelectRows(#"Filtered Kind Folder", each [ReadOnly] = false),
    #"Filtered Hidden" = Table.SelectRows(#"Filtered ReadOnly", each [Hidden] = false),
    #"Filtered System" = Table.SelectRows(#"Filtered Hidden", each [System] = false),
    // get username from the first row
    #"First Row" = Table.FirstN( #"Filtered System", 1 ),
    Name = #"First Row"[Name]{0}
in
    Name