Hi Sharon, 

Thank you for your reply. 

I have re-downloaded nutil and also have had object splitting off. I have now realised that while nutil is creating individual section reports, I get this error which makes the programme quit:

'The instruction at 0x00007FF8CFDA2D0D references memory at 0x0000000000000003. The memory could not be written.'

The hard drive I'm working on has 998 GB free to use. 

Do you know how I can solve this error?

Best wishes, 

Britt