Visiblement mon problème viens d'ici
Mais je n'arrive pas à isoler d'ou cela proviens
Merçi

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            Dim DataAdapter1 As New OleDbDataAdapter(SQLstr, Conn)
            DataAdapter1.Fill(DataSet1, "Table1")
            Conn.Close()
            Label3.DataBindings.Add("Text", DataSet1, "Table1.A")

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Imports System.Management
Imports System.Data.OleDb
 
 
 
Public Class Form1
    Dim ConStr As String = "Provider = Microsoft.ACE.OLEDB.12.0;Data Source =" & Application.StartupPath & "\Sniper.accdb"
    Dim Conn As New OleDbConnection(ConStr)
    Dim DataSet1 As New DataSet("Table1")
    Dim SQLstr As String = "SELECT * FROM Table1"
 
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim HDD_Serial, MB_serial As String
 
        Dim Sniper1 As New ManagementObjectSearcher("select * from Win32_DiskDrive")
        For Each hd In Sniper1.Get
            HDD_Serial = hd("SerialNumber")
            Label2.Text = HDD_Serial
        Next
        Dim mboard As New ManagementObjectSearcher("select * from Win32_BaseBoard")
 
        For Each BaGhdad In mboard.Get
 
            MB_serial = BaGhdad("SerialNumber")
            Label1.Text = MB_serial
        Next
 
        Try
            Conn.Open()
            Dim DataAdapter1 As New OleDbDataAdapter(SQLstr, Conn)
            DataAdapter1.Fill(DataSet1, "Table1")
            Conn.Close()
            Label3.DataBindings.Add("Text", DataSet1, "Table1.A")
        Catch ex As Exception
 
        End Try
    End Sub
 
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
 
        Try
            My.Settings.De -= 1
            MessageBox.Show(My.Settings.De)
 
            If My.Settings.De = 1 Then
                Dim SavInto As New OleDbCommand
                Dim ConStr As String = "ThenProvider = Microsoft.ACE.OLEDB.12.0;Data Source =" & Application.StartupPath & "\Sniper.accdb"
                Dim Conn As New OleDbConnection(ConStr)
                SavInto.Connection = Conn
                SavInto.CommandType = CommandType.Text
                SavInto.CommandText = "INSERT INTO Table1(A)" & "values ('" & Label1.Text & "')"
                Conn.Open()
                SavInto.ExecuteNonQuery()
                Conn.Close()
            End If
        Catch ex As Exception
 
        End Try
 
        Dim Desert As String = TextBox1.Text
 
        If Desert = "Dev" Then
            If Label1.Text = Label3.Text Then
                Form2.Show()
                Me.Close()
            Else
                MsgBox("Label1 <> Label3")
            End If
        Else
            MessageBox.Show("Error Try Agin")
            Exit Sub
        End If
    End Sub
 
 
End Class