USB Drive Detected But not Accessible? Here to See What to Do

Abby Haines updated on Aug 06, 2019 to Storage Media Recovery | How-to Articles


Tired of USB drive detected but not accessible problem? Now you are relieving! Here, we created some troubleshooting steps to help. Just try them one by one until your problem is fixed. EaseUS recovery software is available for downloading if data recovery is needed.

"I have a Sandisk USB flash drive that working well before. But now it seems there is something wrong with the device. Every time when I plug it into the PC, it is detected but cannot be opened or accessed. Is there any way to fix the problem? I have many important files on it."  

Have you ever been caught in a similar situation mentioned above? If you are the one who is tired of USB drive detected but not accessible problem? Now you are relieving! In this page, we created some troubleshooting steps to help. Just try them one by one until your problem is fixed.  

Does your USB drive appear in My Computer?

When you said the USB is detected but is not accessible,  did you mean the pen drive not showing data or that pen drive detected but not showing in My Computer?

If the USB drive just cannot be opened:

You can directly try the EaseUS data recovery software to retrieve your data.

1. Download and install EaseUS Data Recovery Wizard on your computer.

2. Use the data recovery tool to search for and recover your lost data.

  • Choose a storage location or a specific folder where your data was lost and then click the Scan button.
select a location and click scan
  • When the scan is complete, locate the recoverable files or folders from the list of scan results.
scan lost data
  • Select files and then click the Recover button. When choosing a location to save the recovered data, you should not use the original drive.
select wanted data and click recover

If the pen drive is detected but is not showing in My Computer/This PC:

You should do one more thing to check if it appears in Disk Management or not. To open Disk Management, just press Windows+R key to open Run, type diskmgmt.msc in the empty box and tap OK.

open disk management in the run box

Does your USB drive appear in Disk Management?

Now check if your USB pen drive is showing up in Windows Disk Management. Go on with the coming two symptoms & solutions.

If the USB drive appears in Disk Management:

It suggests that there are errors or corruptions on the disk. Then also try the EaseUS data recovery software to recover data from the USB drive and format the device to repair it. 

To format the USB pen drive:

1. Right-click the removable disk partition and choose Format...

2. Select a proper file system and perform a quick format. Click OK.

format usb pen drive in disk management

If the USB drive doesn't appear in Disk Management:

Go to Device Manager to check if it is listed there. If yes, try to update the USB flash drive driver to check if it helps. Here are the steps:

1. Open "Computer" > select "System Properties".

2. Click "device manager" on the left taskbar >  Next to "USB controller", click "+" (plus).Then you'll see a yellow exclamation mark.

3. Right-click and choose "Update Driver Software"

4. Click "automatically search for driver software online... "

  1. update driver software by automatically search online

Wait patiently and let the driver to be installed, then reboot your computer. Then reconnect your USB drive to the PC and check whether the USB drive can be accessed. 


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Frequently Asked Questions

1. Why cannot I recover 2GB data for free?

It is recommended to check the version installed is Free or Trial because they are different versions.

Trial has data preview function but cannot save any files, while the Free version enables to recover 2 GB files. The default free space is 500 MB and you may share the product on social media to get another 1.5 GB.

2. Why cannot the recovered files be opened?

A file is saved as 2 parts on the storage device: directory info (which is comprised by file name, time stamp and size info, etc.) and data content.

If the files with original file names and folder structures cannot be opened, one possible reason is the corrupted directory info. There is still a chance to recover the data content with the RAW Recovery method in our software.

3. Why isn't it suggested to recover the files back to the original drive?

The storage structure of the lost files would be altered or damaged by any changes on the drive. If you save the recovered files back to the same drive, the original data structures and data content would be corrupted or overwritten, which causes permanent data loss. So you should prepare another disk to save the files.

4. How can I check whether my data is recoverable or not before purchase?

The Free version helps you save 2GB files to better verify the recovery quality of our product before purchase.

5. How long does it take to scan the drive?

It strongly depends on the capacity of your hard drive and the performance of your computer. As reference,most drive recoveries can be completed in around 10 to 12 hours for a 1-TB healthy hard drive in general conditions.

About Data Recovery Wizard

It's super easy to recover 250+ types of files after deletion, disk formatting and virus infection. Click the links and compare the difference of each version.