A green hard drive led stays solid for long periods, even when it no applications are , a possible reason behind this open Disk failure is normally indicated by a red LED.
Mostly, a hurt port, cable, or drive can cause these hard drive issues. Make sure that the machine is in working condition and the USB port is not damaged. Clean it thoroughly of any debris or dirt and reconnect the exterior hard disk to check its connection.
One of the most common reasons is a bad USB port or cable. In addition, there are some other factors for the situation like improper device settings, ancient or corrupted hard drive driver, a virus, etc.
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