Fix error 49221 on NTFS External HD

NTFS external drives won't mount after a security update( error 49221). Manual mounting is possible, with DiskManger bypass; but media server remains broken as a result. Can I recover data from the NTFS external drives?

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Brithny· Answered on Apr 16, 2024

" error 49221" most likely occurs when you insert an external hard drive to your Mac that is formatted with NTFS or exFAT format. It is an incompatibility error on macOS, which is similar to " error 0", and if you want to use an NTFS external hard drive on your Mac, the best choice is to reformat it to macOS-compatible file format.

Note: formatting an external HD will delete all data on it, which means losing data. How to format an external hard drive without data loss? The answer is using EaseUS Data Recovery Wizard for Mac, a professional data recovery software that supports recovering data from an unmounting external hard drive.

Check out the following steps to perform NTFS partition recovery on a Mac:

Step 1. Launch the EaseUS software on your Mac, and connect the NTFS external hard drive.

Step 2. Choose the NTFS external hard drive from the disk panel in the software window.

Step 3. Click "Search for lost files", and the EaseUS software will scan the NTFS drive to find all recoverable data.

Step 4. Select the files you want, click the "Recover All" button to recover them, and save them to a safe storage location.

Note: Don't save the recovered files on the NTFS external hard drive.

Then, follow the steps below to format the NTFS external hard drive:

Step 1. Open "Disk Utility" from "Applications > Utilities".

Step 2. Choose the NTFS external hard drive and click the "Erase" button at the top menu.

Step 3. Set a new name and choose a new file format for the formatted external hard drive. Click "Erase" again to confirm the formatting process.

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