> USB Drive Cannot be Opened Windows

How Do I Solve USB Drive Cannot be Opened in Windows 7/8/10

Can't Open USB Flash Drive in Windows 7/8/10

Today, I am going to talk about a hot issue – USB drive cannot be opened in Windows 7/8/10. Now, more and more users like using USB flash drive to store data or transfer data. However, according to users' feedback, users have encountered some different problems like USB drive not showing files and folders, USB flash drive not recognized... Here, we are going to discuss another hot issue about USB drive detected but not accessible. A true example is shown here.

Q: Can't Open USB Flash Drive in Windows 10
I upgraded from Windows 7 to 10 with no problems except I can't open my E drive which is my USB port. I inserted a USB flash drive and the computer recognizes it. When I go to Connected Devices in Settings it is there. I can't figure out how to open it. I have Autoplay on Open Folder to View Files. Anyone know how to open the E drive so I can get to the content on my flash drive? I'm not a computer expert as you can tell.
This example is from answers.microsoft.com.

As we know, if we cannot open USB flash drive in Windows 7/8/10, we cannot access our files on USB drive. Search on google, then we will find a large number of users are talking about the question of USB drive detected but cannot be opened. Keep reading, and then you will find some troubleshooting steps you can go through to effectively solve the issue - cannot access files on USB flash drive in Windows 7/8/10.

tips Before fixing the USB drive detected but not accessible issue, you are strongly suggested to recover data from USB drive in case of any accidents. Believe it or not, human error is one of the most common causes of data loss.

STEP 1. Recover Data from USB Drive that Cannot Be Opened

When it comes to recovering files from USB drive that cannot be opened in Windows 7/8/10, you have 3 options:

1) Recover data from backup files.
2) Recover data by asking data recovery companies for help.
3) Recover data by turning to data recovery software.

No doubt, if you have backup files, the first option is the best choice for you. (Here, you might be interested in this post: Here Is the Best Free Backup Software for Windows 10/8/7/XP.) If there is no backup file, however, which one would you choose?

Here, you can access files on USB drive that cannot be opened via data recovery companies if you don't mind paying high recovery fees or leaking privacy in the process of file recovery. Conversely, you had better look for a professional and simple data recovery software equipped with high security for help. After trying several tools to carry out USB drive file recovery, I find an excellent tool.

Want to know the best data recovery software for USB drive data recovery?

For people who cannot access files on USB drive, MiniTool Power Data Recovery is a best choice because this read-only and professional data recovery software can help them effectively recover lost data from USB drive without damaging the original data. Besides, you don't need to worry about your poor knowledge about data recovery, for this professional tool offers wizard-like interfaces as well as simple operations which can help you complete the task of data loss recovery without any difficulty. And, this tool supports various operating systems including Windows 7, Windows 8 and Windows10.

You can download the Free edition MiniTool Power Data Recovery, and try it out! I bet you would like this professional, simple and read-only data recovery software.

Now, let's see how to recover files from USB drive that cannot be opened in Windows 10.

1. Select data recovery module.
Launch MiniTool Power Data Recovery, and then select a suitable data recovery module.

damaged partition recovery

From the main interface, we can see 5 different data recovery modules, and each of them focuses on different data loss scenarios. For instance, you can click Digital Media Recovery to recover lost/deleted photos. Here, to access files from your USB hard drive detected but not accessible, you can try clicking Damaged Partition Recovery. In fact, you can recover files via this data recovery module as long as the partition exists.

2. Full scan USB drive.
Select the USB drive and then click Full Scan button.

full scan

3. Save needed files.
Preview files, check needed files, click Save button, select a directory, and click OK button to store files in a safe place. It is recommended to store checked files in another drive. Otherwise, the lost/deleted data could be overwritten.


If you are recovering picture files and .txt files, you are able to click this preview icon to preview them before saving.

preview files

Besides, you may note that there is a Filter button in this scan result interface. If there are a lot of found files in this interface, you can use this feature and it will help you save a lot of time to find needed files. If you want to do this operation, just click it. Then, in the pop-out window, you can filter out needless files by file name, file extension, file size, and creation or modification date. For instance, if you only want to recover pictures, you can choose "*.jpg,*.gif,*.png,*.psd,*.tif" from the drop-list of By Filename/Extension, and then click on OK button.


Note: The Free edition of MiniTool Power Data Recovery can only recover 1GB data from USB drive that cannot be opened. If you want to recover more, you need to choose the personal edition or business edition. In my opinion, I would like to choose MiniTool Power Data Recovery Personal Deluxe because it not only guarantees lifetime upgrade service but also offers MiniTool Bootable Media Builder which can help us recover lost data when operating system fails to start.

If you decided to get the person edition, you don't need to close Free MiniTool Power Data Recovery. You can click Register button after getting the license key MiniTool sent to you via email, copy and paste the license key to register, and continue to save selected files.


After recovering data from USB drive, let's see how to solve the USB drive detected but not accessible issue.

STEP 2. Fix-Cannot Open USB Drive in Windows 7/8/10

If you cannot open USB drive in Windows, you can try connecting to another healthy PC, uninstalling the device under Universal Serial Bus controllers from the Windows Device Manager, or updating the USB drivers. If these attempts don't work, you can try the following solutions to solve the USB drive cannot be opened issue.

Here, we will show 3 most common reasons as well as solutions to help you address the USB drive detected but not accessible issue.

Top recommendation: sometimes, we may meet a more serious problem that we cannot see our USB hard drive in Windows Explorer. Now, we can find answers from this post: Solved - External Hard Drive Not Recognized.

Case 1. USB Drive Becomes RAW

As we know, if your USB drive becomes RAW, you cannot open this drive in File Explorer. You will receive the error "You need to format the disk in drive X before you can use it. Do you want to format it?" while connecting USB drive to PC, as shown below.

you neeed to format the disk before you can use

Note: Sometimes, some users might mistakenly click Format Disk. But, according to a survey, most of them fail because of the Windows was unable to complete the format error. If you are one of them, don't worry and you can read this post How Do I Fix "Windows Was Unable to Complete the Format" Error to find answers.

Then, if you click Cancel, you will receive another error:
This volume does not contain a recognized file system. Please make sure that all required file system drivers are loaded and that the volume is not corrupted.

this volume does not contain a recognized file system

Warning: You had better not format your USB hard drive immediately for formatting will delete all your data.

Have you ever encountered this error? What should you do if your USB hard drive becomes RAW? What should you do if you cannot open USB drive in Windows 7? How to solve this issue - USB drive detected but not accessible?

Video Tutorial
If you cannot access files on USB drive, you can watch the following video, and then you will find how to effectively and quickly solve this issue.

Case 2. The Parameter Is Incorrect

Sometimes, users cannot open USB drive in Windows 10 because they receive the following error message: The parameter is incorrect.

the parameter is incorrect

In general, the error that partitions on external hard drive, USB flash drive, SD card, etc. can't be opened and accessed is of common occurrence. And, various factors including sudden power failure, virus invasion, bad sectors, can cause this issue.

Now, you can try the following 2 solutions to fix the USB drive cannot be opened in Windows 10 issue. Note: before solving the USB drive detected but cannot be opened, you had better recover lost data. More information, please refer to STEP 1.

① Format the USB drive
Right-click This PC. (If you cannot open your USB drive in Windows 7, you can click My Computer.)
Choose Manage, and then click Disk Management.
Right-click the corrupted USB drive and select Format.


Set Volume label and File system and check the option Perform a quick format. Then click OK button.

set volume label

Click OK button when you see the following warning message and the formatting will be done quickly.

format warning

② Run chkdsk to fix the can't open USB drive in Windows 10 issue
Press Windows + R on your keyboard to open Run window.
Type cmd or cmd.exe and press Enter or click/tap OK.
Type diskpart and press Enter.
Type command line chkdsk /f /r drive letter: and hit Enter key. (Here, I type chkdsk /f /r f: because my USB drive's letter is F.)

chkdks r f f

Note: If bad sectors are found on the drive during the process, chkdsk will try to repair them. In that case, data stored on bad sectors will be lost. Therefore, you had better try using MiniTool Power Data Recovery to recover lost data in advance.

Case 3. Data Error (Cyclic Redundancy Check)

You have probably heard of the data error (cyclic redundancy check)! Maybe, you have encountered the CRC error. In general, "drive is not accessible, data error (cyclic redundancy check)" is basically an error checking technique which is used for data verification. Now, what should you do if you cannot open USB drive in Windows 7/8/10 because of the CRC error?

People who successfully solved this issue do two things very well:

First, they recover data from USB drive with CRC error.

Helpful article: How to Fix Data Error (Cyclic Redundancy Check)! Look Here!

Second, they try the following steps to solve the USB drive cannot be opened in Windows 10 issue.

  • Right click the USB drive in Windows Explorer.
  • Click on Properties.
  • Choose Tools.
  • Next, click Check under Error checking.

    check under error checking

  • Click "Automatically fix the file system errors" to do a basic check and automatically repair problems with file and folders, and then click Start.

Alternatively, you can try using CMD to remove the CRC error to access your USB drive in Windows.
Open command prompt, and run as administrator.
Type chkdsk /f x: into the command prompt and press Enter. The letter "x" should be replaced with the letter of the USB drive you'd like to run the scan on. Here, for instance, I type chkdsk /f f: because my USB drive's letter is F.

chkdsk ff

Type exit and press Enter after the scan to complete.

Tweet what you find

Bottom Line

Now, it's your time to fix your USB cannot be opened in Windows issue. If you have any questions, please feel free to contact us via [email protected]. If you have any good solution to fix USB drive detected but not accessible, please share your answers in the comment section below. Thanks in advance.