I am working on a Dell laptop that can't boot, the dell diagnostics shows there is a problem with the 512GB nvme ssd and battery. To get the data off the drive, I connected a usb with ubuntu live then a usb with windows to go but the files are showing as 80TB while in fact the size is around 250GB. I ran check disk from the properties- tools of the drive, but it hasn't found errors. In Explorer and Disk Management, the disk size is normal. The data is accessible but because the size is that huge i can't put it on any external disk. What do you think the problem is, and what do you suggest?