NavyLCDR said:
Partitions marked as system or hidden, such as EFI System Partitions and Recovery Partitions will always show 100% free space in disk management. It does not mean they are empty. It only means the files and folders on those drives are marked as hidden and system files and folders. That is normal Windows behavior. For example, my EFI system partition shows 100% free in disk management, yet it has all the required boot files in it:
Had never notice that bug on my own computer. Disk Manager doesn't show all partitions and now I discover that it doesn't show real free space. In other words we can't trust it. Always learning something new. Thanks NavyLCDR