There are several technical and environmental reasons. Below is a breakdown of the most common causes.
Solving the "Unable to Determine the Hardware ID" Error in ODIS There are several technical and environmental reasons
The hardware ID (HWID) is a unique 32-character alphanumeric key used to register and license the ODIS software to a specific machine. Possible Cause Explanation There are several technical and environmental reasons
Some ODIS patches include a separate Get_HWID.exe : There are several technical and environmental reasons