To understand why this tool is controversial, you have to understand the difference between and partition manipulation :
Since SData Tool is not an official product from reputable manufacturers like SanDisk, Samsung, or Kingston, it is often distributed on shady websites. Many versions of these "space expander" tools are bundled with trojans, keyloggers, or adware. Why "Doubling" Hardware via Software is Impossible sdata tool v100 double usb or sd card space
Use services like Google Drive or Dropbox to offload large files, keeping only essential data on your physical drive. To understand why this tool is controversial, you
Once the process finishes, Windows will indeed show that your drive has more space. However, this is a visual illusion. The physical hardware remains unchanged. The Dangers: Why You Should Be Careful Once the process finishes, Windows will indeed show
(like a ZIP folder), which makes files smaller so you can fit more of them. Software cannot create physical cells.
While the idea of free storage is tempting, using tools like SData Tool V100 comes with severe risks to your data: