this code lockes only one column can i lock more than one column using this code

With Sheets("Sheet1")
        .Unprotect "password"
        .Cells.Locked = False
        .Columns(1).Locked = True
        .protect "password"
    End With

thanks i am getting an error

Run time error '1004'

Application defined or object defined error

With Sheets("Sheet1")
        .Unprotect "password"
        .Cells.Locked = False
        .Columns("1:2").Locked = True           ----------->error here
        .protect "password"
    End With

.Columns("A:B").Locked = True

Thanks for an help