Facing theBuffalo hard drive not workingissue can be quite frustrating, as it prevents you from accessing your files.

Its main product is external hard drives.

Why does this issue appear?

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We have dug into this issue and collected the most common reasons why it occurs.

Second, check the cable for any obvious breaks or damage.

If so, replace the cable and see if the disk is recognized.

scan the entire disk

Also, you oughta ensure the USB port on your setup is working.

This allows you to recover data regardless of the version of Windows.

Double-tap the shortcut file of MiniTool Power Data Recovery Free to launch it.

files are listed by file type

Or, you could switch to theDevicestab and choose the entire disk to scan.

During this process, theType,Filter, andSearchfeatures are of great help.

Moreover, you could even locate the required files according to the specific file format.

save the needed files

This makes it easier and faster to find the files you want.

Finally, select a target file and click thePreviewbutton to verify that it is the wanted one.

Duplicate this process to all target files.

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Then, select all required items, clickSave, and choose a preferred location to save them.

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Have you lost important files without backup?

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Fix External Hard Drive Shows Unallocated and Recover Data

Listed below are some feasible solutions for the Buffalo hard drive not being detected or detected but not working.

Solution 1.

Here you could see how to manually assign a drive letter to a disk.

check the disk for errors

On your taskbar, right-hit theStartbutton and chooseDisk Management.

Step 2. see if there is a drive letter assigned to your hard disk.

If not, right-nudge the disk partition and selectChange Drive Letter and Paths.

In the new window, clickAdd, choose an available drive letter from the drop-down list, and clickOK.

Return to File Explorer and test whether the hard disk is back to normal.

Solution 2.

In this situation, the disk will appear as unallocated in Disk Management but not in Windows Explorer.

To reuse the hard drive, you gotta create new partitions on it.

Step 1.Open Disk Managementby using the Windows search box.

Right-poke the unallocated space of your hard drive and chooseNew Simple Volume.

External hard drive shows unallocated?

Now read this post to see how to fix unallocated external hard drive without losing data.

Solution 3.

Under theToolstab, hit theCheckbutton.

Then this tool will begin to diagnose and repair the file system automatically.

Using MiniTool Partition Wizard:

First, download and install MiniTool Partition Wizard Free.

Third, chooseCheck & fix detected errorsand clickStartto let the software check and repair file system issues immediately.

Solution 4. you’re free to complete this task from equipment Manager.

First, right-click theStartbutton and chooseDevice Manager.

Second, double-clickDisk drivesto expand it.

Third, right-smack the Buffalo hard drive and chooseUpdate driverorUninstall rig.

Subsequently, follow the guidance on your screen to update or uninstall the driver.

Solution 5. it’s possible for you to format the Buffalo hard drive from Disk Management.

Here is the tutorial.

Right-hit the hard drive partition and chooseFormat.

After that, hitOK.