Error code

Windows ERROR_BUSY

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

What it means

The requested resource is in use..

How to fix it

  1. Wait for the current operation to finish and retry.
  2. close the program holding the resource.
  3. identify the holder with Process Explorer.
  4. restart the device or service if the busy state is stuck.

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