About this MAC/Storage showing incorrect SYSTEM size I have a 250GB SDD, and AboutThisMAC is showing 191GB available, but ALSO showing the SYSTEM taking up 159GB.  I've scoured the forums and cannot find an answer to this strange occurrence.

I already rebuilt the Spotlight cache (add HDD to privacy, reboot, remove HDD from privacy, reboot)

I also check the TimeMachine, but since I haven't used it, it had no backups

Help?! (and thank you)
It seems illogical but it is really not. The important distinction to note is that the screenshot does not say "192.29 GB free", rather it says "192.29 GB available".

This is because the system part (shown as 159.77 GB) includes disk caches. Most of these disk caches are purgeable, meaning that they can be automatically freed up when space is needed.

So you have 191.29 GB available for you to use when you want - but while you're not using them, the system is using them to speed up operations using caching.