If you burned an nrg image file for a project, "the burning process was successful", the nrg file that was supposed to be created can't be found anywhere on my computer.  

First change the save location for the project(for example: D:\), try again. If still can not find the .nrg file, 

1.Open Settings: Press Win + I on your keyboard.

Go to Windows Security: Navigate to "Privacy & security" → "Windows Security" → Click "Open Windows Security".

2.Find Ransomware Protection:

Click on "Virus & threat protection" on the left.

3.Scroll down to the "Ransomware protection" section.

Click "Manage ransomware protection".

4.Access the Controlled Folder Access Settings: You will now see the "Controlled folder access" toggle,  if it "on", switch to "off", then burn again.