I copied 2TB of data on an exfat disk from a dying Mac. Then on Windows this data is (almost) missing
I have an old mac with a dying hfs hdd with failing SMART. I copied 2tb of data on an exfat drive but windows only sees only 3 directories and 80gb. Where's my other stuff? Now after I did that long copy session that lasted a whole day, the disk died from stress and the mac doesn't boot anymore. Even if it boots, i don't think the disk can last another full copy session...
Testdisk can show the data, there's a way to tell windows that the files are there?
I don't have an answer for certain, but I suspect this may be the usual problem with windows not being able to see or recognize certain file systems. If you have a Linux live drive available, or a VM, you could peek at it through there to see if it's actually been copied