If I issue wmic csproduct get uuid (WMI get SMBIOS UUID) it returns the following string: 81462904-7B5D-E111-ADCD-2C27D725B21D Delphi uSMBIOS returns: 042946815D7B11E1ADCD2C27D725B21D The last 16 bytes are always the same but the first 16 and different. For example: 814629047B5DE111-ADCD2C27D725B21D 042946815D7B11E1-ADCD2C27D725B21D Can you please assist? Is this a bug?