What are you using to create the bootable drive?
If you see a folder named something like HDDREG , type cd HDDREG and press . Hdd Regenerator Bad Command Or Filename
You are trying to run the command from a folder where the file does not exist. What are you using to create the bootable drive
To help you get your hard drive scanned successfully, let me know: Are you trying to run this on an or a modern SSD ? Hdd Regenerator Bad Command Or Filename