This question already has an answer here:
Something just came up on a news bulletin, and I'm a bit puzzled.
- I was unaware of everything that happened that night.
- I wasn’t aware of anything that happened that night.
"Not aware" and "unaware" mean the same thing, a lack of awareness (as far as I am aware!), and yet the everything and anything are not interchangeable.
Am I right in this? If so, can anyone explain the intricacy?