subbruh on 8:55 PM 03/21/2022: This is actually somewhat smart, you just need to change the text for "textBox1" to the variable which is "b".
string b = Convert.ToBase64String(Encoding.UTF8.GetBytes(this.hwid));this.textBox1.Text = b;
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Solution by Luca91: Solution with keygen (in powershell)