How To Fix USB Is Not Accessible Incorrect Function (5 Ways)

Recently many users have reported about the USB is not accessible incorrect function issue. They’ve specified that they received this “incorrect function” error when trying to format the USB drive in Disk Management and use it as an external drive for shifting data between two PCs. Thus, if you’re one of those troubled users, then try to fix this issue by rescanning your drive, removing the write protection from the USB drive, and reinstalling the drivers.

Fixing the USB drive incorrect function is not a big deal. Though it will take just a few minutes to resolve it. Nevertheless, to make this task easier for users, I’ve equipped a user-friendly guide on how to fix USB incorrect function error.

Therefore, just go through this guide and start invoking the step-by-step approaches with accuracy.

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Why Does USB Drive/Pendrive Shows The “Incorrect Function” Error?

Actually, an external hard drive incorrect function error not only occurs when you try to format a drive in Disk Management, but it also takes place when you initialize the hard disk. Well, there are several reasons that may trigger this error.

But USB drive or pendrive is not accessible incorrect function error mostly arises due to the write-protected or corrupted drive.

Now, let’s move on to troubleshoot this error with possible fixes.

How To Fix USB Is Not Accessible Incorrect Function Error?

Way 1: Rescan the USB Drive

When you come across this issue, the first thing you need to do is to rescan your USB flash drive for showing the changes.

Many users have conveyed that they fixed USB drive incorrect function by rescanning their drive via command prompt (Diskpart).

In order to run rescan the disk, you have to follow the below steps:

  • Go to the Start menu then type ‘CMD’ in a search bar.
  • Then, open the Command Prompt as an administrator.

USB Is Not Accessible Incorrect Function

  • After this, type the Diskpart >> press Enter.

USB Is Not Accessible Incorrect Function

  • In a Diskpart command prompt, you have to enter: rescan & press Enter.

how to fix usb incorrect function

After completing these steps, check if you can format or initialize the disk or not. If not, try the next solution.

Way 2: Remove Write Protection From The Drive

As I have already mentioned above, the “Incorrect Function” error message mainly occurs due to a write-protected disk. Though you can remove write protection from drive in a hassle-free manner by following the below steps.

  • At first, press the “Win + R” keys simultaneously.
  • Here, you have to type cmd >> hit “Enter” key.
  • At this time, a command prompt window will open.
  • There you’ve to type diskpart >> hit “Enter” key & diskpart window will be opened.
  • Then type list disk >> hit “Enter” key.

Please NOTE: The disk number of the write protected internal or external drives in Windows PC must be remembered.

  • Now, type select disk 1>> hit “Enter”.
  • Next, type attributes disk clear readonly>> hit “Enter” key. This will eventually disable the write protection on the data storage device.

USB Is Not Accessible Incorrect Function

  • Finally, exit from diskpart window once the process is finished.

Way 3: Reinstall The Driver To Fix USB Is Not Accessible Incorrect Function

It might possible that a corrupted or damaged driver can result in HDD/SSD not accessible incorrect function or USB detected but not accessible issues.

In such a situation, uninstalling and reinstalling drivers can assist you to resolve this problem.

  • Go to the Start menu on your Windows PC.
  • Then type the Device Manager in a Search Box >> hit the Enter.

USB Is Not Accessible Incorrect Function

  • Next, find the Portable Devices option and click on it.
  • Here, you will find a name of your connected drive.

USB Is Not Accessible Incorrect Function

  • After that, make right-click on the corrupted device & select Uninstall Device, then reboot your PC.

USB Is Not Accessible Incorrect Function

  • Now, Windows will reinstall drivers on a hard drive automatically.

Way 4: Run Hardware & Device Troubleshooter

Suppose if your PC is having issues with a newly installed device/ other hardware, then try running Hardware & Devices troubleshooter for solving the problem. Doing so will check for the common problems and ensure that the hardware connected to your PC was installed properly.

Here are the easy steps to do so:

  • Initially, press WindowsW keys together.
  • Next, type Troubleshooting in a search box >> hit Enter.

USB Is Not Accessible Incorrect Function

  • In the third step, you have to tap on the Troubleshooting
  • After that, click on the option “view all” in a upper left side corner.
  • Choose Hardware & Device options from an appearing list.
  • Now, click on Next in order to run Hardware & Device Troubleshooter.

Way 5: Replace The USB Drive Or Pendrive

Last but not the least, if none of the above-specified fixes helped you to solve USB or SD card is not accessible incorrect function, the last option left for you is to change external drive.

There could be a corrupted hard drive or something off with a Flash drive or SD card that you’re using.

How To Recover USB Files After Fixing “USB Drive Incorrect Function” Error?

If you find that you’ve lost all your crucial data from the USB drive while fixing USB is not accessible incorrect function error then stop worrying right there. Yes, I am saying so because by using the professional USB Drive Data Recovery Tool, you’ll be able to bring back files from USB drive.

Apart from USB flash drive data recovery, it has the ability to recover files from other external drives as well like Pendrives, SD cards, hard drives, etc without any backup.

The best thing about this software is that- it supports the recovery of all media files like pictures, videos, music and audio files. Even though you can try this program on both the OS: Windows & Mac respectively. So, just download & install this software from the below-given buttons as per your operating system and recover deleted data from it with ease.

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* Free version of the program only scans and previews recoverable objects.

Here’s the step-by-step guide you can follow to recover hidden files from USB drive.

FAQs (Frequently Asked Questions)

How Do I Fix USB Parameter Is Incorrect?

When you receive parameter is incorrect error message then your USB drive becomes fully inaccessible and the data saved within it also becomes inaccessible. So, it is important to fix this issue as soon as possible by trying some of the available solutions. Here are some of the quick fixes that you can try to solve USB parameter is incorrect error message.

  • Run CHKDSK Command
  • Run SFC Scan
  • Use Antivirus Program
  • Change Settings of Decimal Symbol
  • Update Disk Drive
  • Perform A Quick Scan
  • Format USB Drive

How Do I Fix Diskpart Has Encountered An Error Incorrect Function?

In order to fix diskpart has encountered an error incorrect function, follow the below steps:

  • Step 1: Go to the Start menu then type ‘CMD’ in a search bar.
  • Step 2: Then, open the Command Prompt as an administrator.
  • Step 3: After this, type the diskpart >> press Enter.
  • Step 4: In a Diskpart command prompt, you have to enter: rescan & press Enter key.

To Sum Up

So, this is all about how to fix USB incorrect function error with quick resolutions.

I hope, by trying the fixes mentioned above you might be able to troubleshoot USB/pendrive is not accessible incorrect function and restore data from USB drive with ease.

Nevertheless, if you ask my opinion, I wouldn’t take any risk & immediately go for USB Drive Data Recovery Tool to at least bring back important stuff first.

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