Only slow connections allow to detect them, and this case appears in any manufacturer computer, doesn't matter its an apple or windows operating system.Īlways perform a safe remove, which you can do in a very easy way. If they try to plug it in a usual way, devices can't detect the drives. Many people declare that their USB flash drives work only when they connect them to a computer prolonged. The most reliable path to connect external drives is following these steps:Ģ. The best way is to follow recommendations on how to connect devices to Mac. However, this works in most cases but not all. Even manufacturers declare it is plug-and-play. It's really quick and convenient just to plug in and out your devices, usually, this task for your mac is too easy, but there are cases when it couldn't recognize your device or drive. Combo Cleaner is owned and operated by Rcs Lt, the parent company of read more. You will need to purchase the full version to remove infections and eliminate computer errors. It is recommended to run a free scan with Combo Cleaner - a tool to detect malware and fix computer errors. Video showing How to Troubleshoot External HDD Detection Problems Quite often, it helps to solve this problem. But before we start troubleshooting, first try to reconnect your external device several times. Here, we'll provide you with tips and methods on fixing Mac not recognizing external drives. Sometimes it's a power or connection problem and occasionally errors in the system preferences. This problem can also be caused if the connector or wires are broken, frayed, or worn.

This results in the drives being still in the run mode while they are out of use. The most frequent cause is driver removal straight from the port without ejecting it from the operating system. There are a few reasons why this may happen. Unfortunately, sometimes your Mac can encounter problems resulting in not being able to detect plugged-in devices. Troubleshooting TipsĮxternal drives can help expand device storage and share large-size files in a much easier way. Mac or MacBook Doesn't Recognize External Drives.

Mac not detecting usb hard drive