
Push the Power button while continuing to hold down the Command, Option, P, and R buttons. To do this, you must adhere to the instructions listed below. Resetting NVRAM (Non-Volatile RAM) and PRAM (Parameter RAM) is the next method to fix unmountable hard drives on Mac. Step 1: Open Finder in Finder > Preferences can be accessed from the Apple menu bar.įirmware is information that specifies how a computer or other hardware device should function and is kept in the ROM (read-only memory) of those devices. At times you might have disabled the option to display the mountable or connectable hard drives or other external devices.įollow the following steps to change the display drive settings. Mac gives you an option to choose or hide any external devices in the Finder sidebar on the desktop. You ought to use a specialised NTFS software to mount an NTFS hard drive or reformat the hard drive with any mac supported file system. The solution is if your NTFS drive won't mount on macOS 10.15.7 or later versions, and the " error 49221" problem appears when you try mounting a drive with Disk Utility. You won't be able to mount the disc on a Mac if you format it on a Windows PC with a file system that macOS does not support. Method 3: Try the Third-party External Drive Mounter If you are unable to mount your hard drive, kindly try other methods. By changing the USB cable, you may be able to resolve the issue. You might also try a different USB cable. Method 2: Reconnect Your External Hard Driveįirst, the simplest recommendation is to re-plug your external hard drive into a different port because particular ports may become unstable and dysfunctional over time. It's also possible that while mounting your SSD, macOS got stuck refreshing itself.Īvoid opening too many apps while using your hard drive and restart your Mac to "unstuck" it.

When you connect your drive, if you have a lot of apps open, macOS might not have enough resources to mount and read the drive.

Why is your Mac Unable to Mount an External Hard Drive? How To Recover Data From an Unmountable Hard Drive?.

How to Mount an External Hard Drive Mac?.Why Does External Hard Drive Not Mount on Mac?.
