Random value for disk Signature [closed]
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . As part of a machine identification system, I'm looking for the Signature of the Win32_DiskDrive. On two customer's machines now, I've seen this field have a random value. I assume that is due to not having checked the HRESULT in the shipped code. What would cause a machine to not have a valid signature? WQL