The way to resolve the issue that 1 hard disk will not be displayed for dual difficult disks? The fo

usb stick raw and hold the 'win key' and 'x key' around the laptop or computer keyboard (the win key could be the crucial in the Microsoft icon), an alternative bar will seem, we click 'Disk Management'

Right after entering the 'Disk Management', we select the c drive, appropriate click

1 tough drive with two challenging drives does not show tips on how to resolve

Right-click and pick 'compress volume' to compress the c drive

Enter the size of the preferred disk inside the box after 'Enter the amount of compressed space' (1024M = 1G, unit is M)

Just after inputting, click compress, wait for the compression to become completed, a new disk will seem soon after the compression is completed (display unassigned)

Right-click on the new disk and choose 'New Easy Volume'