I realized that the Mac OSX Sierra is taking more than 100GB+ on my machine. I don't think this is normal. I clicked on manage and I didn't see any very large system file.
I wonder how can I reduce the disk footprint of the system?
I have already optimized my document and personal storage, but I don't understand why the OS would take 100GB
Something is seriously wrong.... since the time I made this post. Now the OS has grown and taken up my entire disk.

