Created September 2017 - JB
Attempting to start Rhino V5 reports “Rhino.exe - Bad image” (64-bit) or “Rhino4.exe - Bad image” (32-bit), with an Error status 0xc0000020. The current version of McAfee antivirus is deleting the contents of Rhino system file leaving them empty.
Some users are reporting that after a recent update, Rhino V5 64-bit will not start. Our original guess was this was caused by an unknown Windows update. Now there are clear indications this is caused by the current version of McAfee anti-virus.
In Windows Control Panel:
The problem will likely come back if you do not block McAfee from the Rhino system files.
You can configure McAfee to exclude the C:\Program Files\Rhinoceros 5 (64-bit)\System folder where these files are stored.
Hopefully McAfee will figure this out. So far, we have been unable to contact them with these details.