Mac Not Recognizing Lacie External Hard Drive

I just got both a MacBook Pro and a LaCie 1TB Rugged Safe External Hard Drive just a few days ago. I just plugged in my external and I installed the needed software from the drive, restarted and the drive wasn't found in LaCie Safe Manager. I tried restarting the computer without the drive plugged in, with Firewire and USB, and then I even tried it on my PC -- which it worked on there. I was able to make an account onto the drive and put my finger prints and everything on the drive, but when I came back to the Mac it didn't work at all.


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  • Jul 01, 2011 Question: Q: Lacie External Hard Drive not recognized on Mac but recognized on PC I just got both a MacBook Pro and a LaCie 1TB Rugged Safe External Hard Drive just a few days ago. I just plugged in my external and I installed the needed software from the drive, restarted and the drive wasn't found in LaCie Safe Manager.
  • Jan 20, 2010 Joined Dec 25, 2009 Messages 71 Reaction score 0 Points 6 Location Canada, NS Your Mac's Specs 15' MacBook Pro (OS X Leopard 10.5.8), Intel Core 2 Duo (2.53Ghz), 4GB RAM, 7200RPM/250GB HDD.

Choose your format, probably exFAT if you want to make sure it's compatible with PC and Mac, otherwise, Mac OS Extended (Journaled) is probably the best option. Give the drive a name.

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I can't say it's the drive itself because it worked on the PC. I don't Tried the Disk Utility and it's showing '999.91 GB LaCie' and then 'NO NAME' under it, but tabed over.


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If your mac book/ pc port or external drive is damaged, your Mac will not identify the external hard drive. And you will get the same dialogue on-screen as I showed above. You must have to check the Mac to recognize the external hard drive through the following steps: Step 1: Click on the apple icon on the upper-left corner of your screen.

Time Machine will not recognize hard drive. Time Machine tells me 'You cannot open “Time Machine” preferences pane because it is not available to you at this time.' My Lacie HD is on and mounted. I have erased it and repartitioned it and still get nothing. I get the would you like to set up TM prompt but then get the message above. To Learn About The Lacie External Hard Drive Not Recognized In Mac. Asked By Qaiser 0 points N/A Posted on.

And help/suggestions?

MacBook Pro, Mac OS X (10.6.8), LaCie Rugged Safe 1TB

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This page covers the most complete LaCie external hard drive troubleshooting tips to help you fix and repair LaCie disks. If your LaCie drive is not recognized or corrupted, please take it easy!

Follow the provided solutions on this page to get rid of this issue and make your device work again.

Workable SolutionsStep-by-step Troubleshooting
Fix 1. Recover DataRun EaseUS software, choose the LaCie drive...Full steps
Fix 2. LaCie Light BlinkingReconnect the LaCie > Disable Save Power...Full steps
Fix 3. Repair LaCie Not Turning OnCheck power cable > Change USB port...Full steps
Fix 4. Repair LaCie Not Showing Up1. Format disk to NTFS; 2. Assign Drive Letter...Full steps
Fix 5. Repair LaCie Not Working1. Update disk drivers; 2. Uninstall Universal...Full steps

LaCie is a storage device producer. It manufactures universal types of external hard drives, SSDs, HDDs, and even network storage services for worldwide users to storing their personal files and business data. People always use it for saving backups. With huge storage capacity, it's widely used for saving lots of files such as photos and videos.

LaCie external hard drive becomes excessively popular among users due to its high capacity and fast performance. However, according to the LaCie support community and the Google search result, LaCie external hard drive users have also encountered some problems while using its external hard drives and internal HDDs/SSDs.

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Here, we'll take LaCie Porsche Design as an example to show you how to troubleshoot all types of external hard disk problems without losing any data.

Why Is My LaCie Not Working

Normally, a lot of issues may cause an external hard drive not working, not turning on, or malfunctioning. Learning the causes will help you find the right solutions immediately. Here are the main causes of why your LaCie external hard drives are not working:

  • Problematic connection (between drive and computer)
  • RAW or invalid file system error
  • File system corruption
  • Drive letter conflict
  • Drive is unallocated, no partition
  • New drive is not initialized
  • Drive driver is outdated
  • Drive is hidden from showing up on the computer
  • Virus, malware infection

LaCie External Hard Drive Troubleshooting Tips

So how to fix the LaCie external hard drive not working issue on your own without losing any data? Here we'll take LaCie Porsche Design as an example to show you how to successfully repair LaCie external hard drive from the following issues:

Note that as some troubleshooting methods presented here may cause file loss issues, it's recommended that you take reliable data recovery software as shown in the first case to bring your files out of the device first. EaseUS Data Recovery Wizard is good for you to try.

Now, let's move to the right fixes to troubleshoot your external hard disk not working, not turning on, not showing up error with ease.

Case 1. Fix LaCie External Hard Drive Data Loss Error with Data Recovery Software

Applies to: Scan LaCie external hard drive and recover lost data due to deleting, formatting, RAW, and even inaccessible error.

Mostly, when your external hard drive or internal hard drive is not working or not showing up, what comes first is to perform data recovery on the device. So keep this in your mind:

  1. 1. Stop using the device when you lost data on it.
  2. 2. Turn to professional data recovery software for help.

Here, we'd like to recommend you try EaseUS data recovery software - Data Recovery Wizard. No matter what causes file loss on your drive, as long as your drive can be detected by Windows Disk Management, this software can work and help.

Here is the step-by-step guide that you can follow to recover data from the LaCie external hard drive immediately:

Video Tutorial

Step 1. Choose the external hard drive

  • Since you're going to recover data from an external hard drive, you need to correctly connect the drive to your Windows computer.
  • Run EaseUS Data Recovery Wizard and choose the exact external drive where you lost data.
  • Click Scan.

Step 2. Check the scan results

The software will immediately start scanning the selected drive for all lost data. During the scan, you can see more and more data showing up in the results. The Filter feature is there for you to quickly locate the files of one kind, such as Pictures, Word/Excel/PDF documents, Videos, etc.

Step 3. Preview and recover data

  • Double-clicking a file will allow you to preview its content.
  • Choose the file(s) and click Recover.
  • Select a different drive to save the recovered files instead of the original one.

After this, remember to save the restored files and data to another secure device before making the device work again. If your computer cannot detect the LaCie external hard drive, follow the tips as shown below to make it detectable first.

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Case 2. Fix LaCie External Hard Drive Light Blinking, Not Working

Applies to: Fix LaCie external hard drive light blinking error due to unstable power supply issue.

Mac Not Recognizing Lacie External Hard Drive Not Recognized

To fix this issue, you have two options to try:

1. Reconnect the LaCie power cable

If the power LED light is blinking, connect the power cable to the external drive and then connect the power supply to a live power outlet.

2. Disable Save Power Mode in USB Root Hub

Step 1. Keep the LaCie external hard drive connected to your computer.

Step 2. Press Windows + X or right-click the Windows icon, select 'Device Manager'.

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Step 3. Locate and expand the Universal Serial Bus controllers.

Step 4. Right-click 'USB Root Bub' of your external hard drive and select 'Properties'.

Step 5. Go to the Power Management tab, then uncheck 'Allow the computer to turn off this device to save power'.

After this, restart your PC and reconnect the Lacie external hard drive to your computer. Then you can check out if your drive is showing up. If it still not turning on, continue reading with the fixes as shown in the next parts.

Case 3. Fix LaCie External Hard Drive Not Turning On

Applies to: Fix LaCie External hard drive not turning on issue due to problematic connection.

Sometimes, the 'external hard drive not turning on' issue is also known as 'external hard drive won't power up'. Besides the above two methods presented in Case 2, you can also try the following tips to make the LaCie external hard drive turning on and show up on your computer again:

Step 1. Check if the power cable of your external hard drive is broken.

If yes, change a new power cable, and reconnect the disk to your computer tightly.

Step 2. If the power cable is good, switch a USB port and reconnect LaCie to your PC.

Check if the drive shows up or not.

Step 3. If the drive doesn't show up at all after you've tried all the USB ports on the computer, try to connect it to a new computer.

Make sure that each time you reconnect the drive, the cables are correctly and tightly connected between your external drive and computer.

Case 4. LaCie External Hard Drive Not Showing Up/Detected/Recognized

Applies to: Fix LaCie external hard drive not showing up, detected error due to RAW or unsupported file system, drive letter conflict, partition loss error.

As the causes of an external hard drive not working are complex, we suggest you connect the LaCie external hard drive to your computer and open Disk Management to check its state so as to follow the respective methods as listed here for help:

  • LaCie Shows as RAW, or *Others, Unsupported File System - Format to Reset LaCie Detectable
  • LaCie Shows as New Volume with No Drive Letter - Assign a New Drive Letter
  • LaCie Displays as Unallocated - Create New Volume

Let's follow the right fixes here to repair and make your LaCie external hard drive work again.

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#1. Format and Reset LaCie External Hard Drive to (NTFS) Detectable

Step 1. Right-click on This PC/My Computer, select 'Manage'.

Step 2. Click 'Disk Management', locate and right-click the RAW external hard drive partition, then choose 'Format'.

Step 3. Select NTFS as the file system for the partition and click 'OK' to confirm.

#2. Assign a New Drive Letter to Make LaCie Showing UP

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Step 1. Press 'Windows' + 'X' at the same time, select and open Disk Management.

Step 2. Right-click the external hard drive partition and select 'Change Drive Letter and Path…'.

Step 3. In the pop-up window, click 'Add' to assign the drive letter to your LaCie external disk.

#3. Create a New Volume on Unallocated LaCie External Hard Disk

Step 1. Open Disk Management and locate the unallocated space of LaCie external hard drive.

Step 2. Right-click on the unallocated space and select 'New Simple Volume'.

Step 3. Assign a new drive letter to the disk, set NTFS as its file system, click 'Next'.

Step 4. Follow the on-screen guidelines to create a new partition on the LaCie external hard disk and click 'Finish' to complete.

Bonus Case: LaCie device shows as No Media

If the LaCie external hard drive shows No Media in Disk Management, what you can do is very less. All you can do is to go back to case 5 and update the device driver. Then try to change the drive letter in Disk Management, and format it to NTFS.

If none of these tips work, your last tryout is to take the disk to a disk repair center for help.

Case 5. LaCie External Hard Drive Not Working/Responding

Applies to: Fix LaCie external or internal hard drive not working or responding error due to outdated driver.

#1. Update LaCie External Hard Drive Driver

Step 1. Keep the LaCie external hard disk connected to your PC.

Step 2. Click on 'Start' and type devmgmt.msc to open 'Device Manager'.

Step 2. Expand'Disk drives', right-click your LaCie external hard drive and select 'Update driver'.

Restart the computer andthen check out whether any device shows up as unrecognized or not.

#2. Uninstall Universal BUS Controllers' Drivers

Step 1. Connect LaCie external hard drive to PC andOpen Device Manager.

Step 2. Expand Universal Serials Bus controllers and right-click each USB Hub, select 'Uninstall device'.

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Step 3. After this, restart the PC, and Windows will automatically update and reinstall them for you.

Then you can check out if your LaCie disk is detectable by the computer.

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To Sum Up

On this page, we listed the possible causes of LaCie external hard drive not working issue and listed 7+ Lacie external hard drive troubleshooting tips to help you repair not working, not showing up, not responding, and even not recognized drive to a normal state.

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Note that, no matter which method you tend to try, remember to apply EaseUS data recovery software to scan and restore all your valuable files from the disk to another secure location first.