I have installed Avast Antivirus Free edition and only have limited tools being utilized. No Firewall I have a once a week scan set. When I Start the computer and do not use any apps and do a Shutdown the system close down as normal. Now if I Start the computer and use any one of the apps I have written in VB.Net that use a SQLite DB and it opens a YouTube webpage and watch the video. I close out of the webpage AND close the VB.Net application with a press of the ESC button with this code

If Asc(e.KeyChar) = 27 Then
        Application.Exit()
 End If

Avast gives me a message that I need to close a program running in the background.It does not show the name of the program. This can take 4 min to 30 min no idea what causes the different times. I think it depends on how many web sites or the number of apps that I have written that were opened. I have Visual Studio set to not check for updates in the application & I have disable checking for updates in Task Scheduler for VS 2019 I have Firefox and Google Chrome and DuckDuckGo installed. I unchecked "Use background service to install updates" I have considered using a Private Sub that uses cmdClose and cmdKill but not sure this is a FIX! Any suggestion are appreciated Thanks

REQUESTED EDIT Here is the code I use to open the Web Page

    Private Sub dgvLinks_CellClick(sender As System.Object, e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvLinks.CellClick

    selRow = e.RowIndex

    If e.RowIndex = -1 Then
        gvalertType = "4"
        frmAlert.ShowDialog()
        Exit Sub
    End If

    Dim row As DataGridViewRow = Me.dgvLinks.Rows(e.RowIndex)
    If row.Cells(2).Value Is Nothing Then
        gvalertType = "5"
        frmAlert.ShowDialog()
        Return
        Exit Sub
    ElseIf gvTxType = "View" Then
        webPAGE = row.Cells(2).Value.ToString()
        siteID = CInt(row.Cells(0).Value.ToString())

        UpdateSiteData()
        'KEEP CODE BELOW incase Google stops Firefox from working
        '=========================================================
        ''Process.Start("chrome.exe", "-maximized --incognito " & webPAGE)
        Process.Start("Chrome.exe", webPAGE)
        'Process.Start("firefox.exe", webPAGE)
        ''Process.Start("firefox.exe", " -private-window " & webPAGE)

    ElseIf gvTxType = "Delete" Or gvTxType = "Update" Then
        gvID = CInt(row.Cells(0).Value)
        gvSiteName = row.Cells(1).Value.ToString
        gvSiteURL = row.Cells(2).Value.ToString
        frmADE.Show()
        Close()
    End If

End Sub

ON Form Start I open & close the application Here is the code to Open the Database so when I close the DB

   Private Sub frmStart_Load(sender As Object, e As EventArgs) Handles MyBase.Load

    If My.Computer.FileSystem.FileExists(gv_dbName) Then
        btnCreateDB.Visible = False
        btnVLink.Visible = True
        cbType.Visible = True
        lblSiteType.Visible = True
        FillComboBox()
        Me.Width = 700
        Me.Height = 350
        gvSLT = ""
        pbYouTube.Image = My.Resources.ytbt
        Me.Refresh()
    Else
        Me.Width = 265 'Was 700
        Me.Height = 190
        Me.Refresh()

        btnCreateDB.Visible = True
        btnVLink.Visible = False

    End If

End Sub

SO when I use Application.Exit() use code like this ?

Public Class DatabaseManager
Private Shared connections As New List(Of SqlConnection)

Public Shared Sub AddConnection(connection As SqlConnection)
    connections.Add(connection)
End Sub

Public Shared Sub CloseAllConnections()
    For Each connection As SqlConnection In connections
        If connection.State = ConnectionState.Open Then
            connection.Close()
        End If
        connection.Dispose()
    Next
    connections.Clear()
End Sub

End Class