Hi.. You can try the below way..

This is the easiest and simplest way to generate the word or password randomly.
string schars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVW XYZ";
string name = string.Empty;
Random rand = new Random(DateTime.Now.Millisecond);
while (name.Length < 6)
name += schars[rand.Next(0, schars.Length)];