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How to Fix The Parameter is Incorrect Error


Did you get "The parameter is incorrect" error message and cannot access your external hard drive, USB drive or SD memory card? How can you fix the error without data losing? Here are some useful instructions that can help you to fix the issue and recover your missing data.

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Sometimes, when we tried to access files stored on the hard drive, the warning message "I:\ is not accessible, the parameter is incorrect" appeared. Why?
The parameter incorrect is probably the most common issue that is associated with the hard drive or external storage drives. You can go on reading the article to find out the helpful solutions when you meet such a problem.

Causes of "the parameter is incorrect" error

There are some reasons for this kind of error:

● USB Port problem; the USB is a link between a computer and an external hard drive, and once it is not functional, the hard drive might be damaged.

● Improper removal of the hard drive; unplugging the hard drive from the computer directly damages the hard drive hence the cause of the error above.

● Bad sectors on the external hard drive; one bad sector on an external hard drive might make the entire partition inaccessible. These bad sectors might damage the whole drive.

● File system corruption In computer, a file system is used to control how data is stored and retrieved. Once file system goes wrong, you may fail to access drive and receive some errors like "the parameter is incorrect," "Data error (cyclic redundancy check)," "Windows is unable to complete the format," etc.

In computing, a file system is used to control how data is stored and retrieved. Once file system goes wrong, you may fail to access drive and receive some errors like "the parameter is incorrect," "Data error (cyclic redundancy check)," "Windows was unable to complete the format," etc.

Recover data first from the drive

Well, when encountering the error "drive is inaccessible, the parameter is incorrect," experienced users will firstly think of recovering data and files from this drive, and then fix this error. How to effectively retrieve data from the drive that parameter is incorrect?
You can consider using recommended software like Bitwar data recovery, and it is designed to recover missing data caused by various reasons. Moreover, this program allows you to preview files before you recover them.
Download Bitwar data recovery from its official website or by clicking the below download button and install it.

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Step 1. Select the partition or device

Launch Bitwar Data Recovery software on your windows and select the partition in which the parameter is incorrect, then click "Next."

recover lost files

Step 2: Select the Scan Mode

There are three modes provided for you, and you can choose the "Quick Scan" mode to recover first. If you cannot find files after Quick Scan, please try Deep Scan again.

recover lost files

Step 3: Select the file types

Select the file types you want. You can also choose "Select All Types" to recover files on this partition if you are not sure about the type of your file. Then click "Next" to start scanning.

recover lost files


Step 4: preview and recover lost files

After the scan, you can find the files you want and preview them one by one. Then choose the file you want and click the "Recover" button to save it to another partition or external device.

recover lost files

After following the above four steps, the lost data will be back to the drive. Now you can fix "the parameter is incorrect" issue by following the solutions listed in this page.

Solutions to fix the error of "the parameter is incorrect."

Solution 1: Run CHKDSK

CHKDSK is an inbuilt hard drive error checking and repairing utility in Windows which is used to scan hard drive, bad sectors and fix errors in the hard drive simultaneously. You can follow these steps to repair your inaccessible external hard drive:

          1.   Type cmd in Windows search box.
          2.   Right-click on 'Command Prompt' and select 'Run as Administrator.'
          3.   Click 'Yes' to grant Admin access.
          4.   Type the command chkdsk X: /f where X is the external hard drive partition letter.
          5.   TIP: Alternatively, you can type chkdsk X: /F /X /R for rigorous scanning and repair.
          6.   Hit the 'Enter' button and wait until 'Chkdsk' utility repairs the disk errors.

NOTE: CHKDSK can only repair soft bad sectors. While repairing soft bad sectors, CHKDSK will damage the files and data resided on those bad sectors. If you don't want to risk damaging or corrupting your data, please recover your important data first.

Solution 2: Run SFC Scan

Sometimes the error arises within your computer system due to some missing or corrupt system files.
       1.  Press 'Windows+Q' to open the search bar.
       2.  Type cmd. Right-click on 'Command Prompt' and select 'Run as Administrator' from the options.
       3.  Type SFC /scannow in the CMD window and hit the 'Enter' button to run the SFC scan.
       4.  If SFC scan finds any problem with system files, it can ask for Windows installation DVD or USB installation media to repair corrupt and damaged system files.
       5.  When finished, restart your system and try connecting your external hard drive to the PC.

Solution 3: Use an Antivirus Program

If a virus-infected file resides on your external hard disk, it can make your hard disk inaccessible. You can use good antivirus software to scan your external hard disk for any viral infection and quarantine the virus.

Solution 4: Format the Drive

If none of the above solutions works, formatting external hard drive is the only solution to fix parameter is an incorrect issue. Please note that formatting will erase all the data on your external hard drive.


I hope you can get useful information from this article and can fix the error about "the parameter is incorrect" successfully.
We know that every storage device is susceptible to failure or corrupt. To prevent the consequences of damage in these devices, you'd better back up your files regularly and always equip yourself with Bitwar Data Recovery software!

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