The fix you found was for a blank save box, not this problem.
1. Make sure you aren't showing previews in Windows Explorer?
2. No good? Do what the message says.
I have tried resaving as a different name or other location, it still will not save, get the same error message. I don't know what you mean by previewing in Windows Explorer? I'm trying to save it from within the Adobe program.
I mean that you need to make sure that in your Windows Explorer (File Explorer not Internet Explorer), you must make sure that there is no preview showing. This may not seem relevant but it is.