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

Roxanne updated on Dec 11, 2020 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.

Step 1. Select a location to scan.

Launch EaseUS Data Recovery Wizard, hover on the partition, external hard drive, USB, or memory card from which you want to perform data recovery, and then click "Scan".

select a location and click scan

Step 2. Select the files you want to recover.

Wait until the scanning completes. Afterward, select the lost files you want to recover. If you need, double-click the file to preview its content.

Choose files to recover

Step 3. Recover lost data.

After choosing the files, click "Recover" and choose a location on another drive to save the recovered files.

Recover lost data

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 choose EaseUS Data Recovery Wizard?

"EaseUS Data Recovery Wizard is the best we've seen. It's far from perfect, partly because today's advanced disk technology makes data-recovery more difficult than it was with the simpler technology of the past, but it's fast and efficient..."PCMag

"The first thing you'll notice about EaseUS Data Recovery Wizard Pro is that its interface is very clear and uncluttered, with only a small collection of self-explanatory controls. You won't find lots of extra options hidden in a system of hidden menus, either; what you see really is what you get."techradar

"Recover lost files, even after deleting a partition or formatting your drive."Macworld

2. 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.

3. 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.

4. 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.

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

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

6. 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.