Okay, I really, really, really need some help here.

I have completely reformated my pc to initial configuration.

I have so far reinstalled:
- Office
- Avast antivirus
- Opera
... and nothing else.

I have copied across the basic contents of my old libraries. And nothing else.

And Word is STILL not saving.

This has only been happening with Word. There is plenty of disk space. Plenty of memory.

I just can't even think what is going wrong.