C# Convert Active Directory Hexadecimal to GUID
Guid has a constructor which takes a byte array
You can convert the hexadecimal string into a byte array and use that to construct a new Guid.
If you need to know how to convert the hexadecimal string to a byte array, Stack Overflow already has a few answers to that question.
From the accepted answer of that question:
public static byte[] StringToByteArray(String hex){ int NumberChars = hex.Length; byte[] bytes = new byte[NumberChars / 2]; for (int i = 0; i < NumberChars; i += 2) bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16); return bytes;}