I read about exFAT vs NTFS here -, and decided that I will use exFAT so that the external drive will still be portable.
I also notice that external drive is using exFAT not NTFS.
Running following command, wmic volume get driverletter,blocksizeĪs we can see, that the external SSD is formatted with 132 KB blocksize as opposed to 4KB blocksize in other drives. In C:\, the Size on disk is typically 10% higher than value of Size - however in my external SSD the Size on disk is 300% higher of value of Size. I right click a folder in C:\ and the compare it with the external SSD, and found out that the ratio between Size and Size on disk are different between both. Until this morning when I really need more space, I started to find out more what is actually happening. Initially, I have no idea why I left with only 25 GB free space after I activate the file history. I plan to use it as a file history backup of my Windows 10. Last month I bought new external SSD drive of 512 GB.