ntfs fat recovery can find two SATA tough drives installed around the computer. The Xinan tough drive cannot be discovered in my pc but is usually identified inside the device manager. What must I do? I solved it this way: desktop → correct click on my computer → management (G) seems inside the drop-down menu → left click on management (G) seems → storage appears inside the laptop management dialog box → disk management within the next level of storage → Left-click on the gray region beneath the disk management and right-click on the disk 1 → comply with the prompts step by step in the dialog box (the right button is more made use of) → partition the disk 1 and specify the drive letter → format every partition one particular by one. But do not format all new partitions in the exact same time, which is also time-consuming. Lesson: 1. See clearly that the designated partition can be a six-digit quantity, and the total capacity of all partitions must be equal for the total capacity from the disk. 2. Don't have too many partitions, just three or 4. three. Because the initial partition is inexperienced, there is a piece of 17.86G left within the image above, and I can't assign a drive letter. I can not see it in my computer system inside the future, which is a waste of disks. fat system file , this is the encounter and lessons I have learned step by step, and I have written out that I'm prepared to share it with everyone.