Error code

Windows 0x80070015

WINDOWS0x80070015
System Error Code· A POSIX/system errno returned when a system call fails.

What it means

The device is not ready..

How to fix it

  1. Confirm the drive or media is connected and powered on.
  2. reseat USB or SATA cables.
  3. assign or check the drive letter in Disk Management.
  4. try a different port or device.

Not affiliated with Windows. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.