How to delete sheets except for certain sheets in the VBA

Question

I have this code, but excel always crashes when I run it. I don't receive an error code or anything. Excel just closes out.

Sub DeleteSheets()
    Dim xWs As Worksheet
    Application.ScreenUpdating = False
    Application.DisplayAlerts = False
    For Each xWs In Application.ActiveWorkbook.Worksheets
        If xWs.Name <> "Overview" And xWs.Name <> "Models-Features" And xWs.Name <> "Formulas" And xWs.Name <> "Original Features" Then
            xWs.Delete
        End If
    Next
    Application.DisplayAlerts = True
    Application.ScreenUpdating = True
End Sub

Answer 1

It appears your code is deleting all sheets causing the error, even if one is labeled "Overview". I cleaned this up using Select, which now does not delete the appropriate named sheets:

Sub DeleteSheets()
    Dim xWs As Worksheet
    Application.EnableEvents = False
    Application.Calculation = xlManual
    Application.ScreenUpdating = False
    Application.DisplayAlerts = False
    For Each xWs In Application.ActiveWorkbook.Worksheets
        If Sheets.Count = 1 Then Exit For
        Select Case xWs.Name
            Case "Overview"
            Case "Models-Features"
            Case "Formulas"
            Case "Original Features"
            Case Else
                xWs.Delete
        End Select
    Next
    Application.DisplayAlerts = True
    Application.ScreenUpdating = True
    Application.EnableEvents = True
    Application.Calculation = xlAutomatic
End Sub

Edit1: Added check for Sheets.Count which will prevent the error caused by deleting the last sheet in the workbook.

Edit2: Added additional application constraints