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Fix Corrupted SD Card and Recover Lost Data


With the full name of "Secure Digital Card," SD Card is a type of memory card that is typically used in media devices. Such as Android mobile phones, digital cameras, and other portable devices. But there will be a variety of problems, such as SD card data loss, SD card cannot be read, or SD card corrupted case and so on. This article will show you some practical methods to fix the SD Card can not work problems.

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1. Use the CMD command or Windows System Tool

  • Fix 1: Change the Drive Letter

 In some cases, If your SD card can't be read by a computer when connecting via a card reader, it could be that the computer is unable to assign drive letters (like C, D, E) to the reader.


1. Connect your SD card via a card reader to your computer. Right-click on "My Computer/This PC" and choose "Manage."


2. Click "Disk Management" on the left. Right-click on your SD card and choose "Change Drive Letter and Paths."


3. Then select the right drive letter from the drop-down list. Click "OK" and then see if the SD card can be recognized now.

  • Fix 2: Reinstall the Drivers

There are times when the drivers run your SD card that gets corrupted and your PC is not able to detect the storage media. You can reinstall drivers by following these simple steps:


1. Right-click "My Computer/ This PC". Click "Manage."

2. Click "Device Manager" on the left side.

3. Double-click "Disk Drives" in the list. Right-click on the name of your pen drive.

4. Click "Uninstall". Click "OK".

5. Disconnect your storage media and restart your PC.

6. Connect your pen drive again. Your PC will detect it and install it.

  • Fix 3: Recover a corrupted SD card by using the CHKDSK command

By using the Command tool, the Windows computer can execute the Chkdsk command and fix the corrupted SD card.


1. Click on the "Start" button, select the "Computer" option. Search for your SD card under "Devices with Removable Storage" and note the assigned drive letter.

2. Click on the "Start" button, in the search box, type "cmd".

4. Right-click "cmd.exe" and then select the "Run as administrator" option.

3. In the newly-opened command window, type the command: chkdsk [sd card drive letter]: /f /r /x and press enter.

  • Fix 4: Format Corrupted SD Card

Formatting an SD card will erase all contents stored in the card. If you have backed up and recovered the data on the Corrupted SD Card, you can try to repair the corrupted card by formatting it so that you can continue to use it. here are the ways to format an SD card in windows system environment:


1. Open"My Computer/This PC" and right-click on your SD card.

2. Choose Format in the drop-down menu. When there is a pop-up window, click "Restore Device Defaults" > "Start."

3. If you want the computer to be deep scan the card, uncheck the Quick Format option.       

2.  Recover the corrupt SD card with Bitwar recovery software.

  • The most important thing you should know is to stop using the corrupted SD card until you can recover all the data you still need. Once the card is overwritten, the data will be deleted automatically.

  • Firstly, try to fix the accessible matter with the methods mentioned above. Once you can enter in the SD card,  data recovery software scans the SD card and retrieves all your precious files, photos, videos, audios, etc.

  • Free download and then install Bitwar Data Recovery Software on your computer by clicking here. For the SD card, you will have to insert it into the slot that provided in your computer or by using an external card reader.

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    Step 1. Select the SD Card

    Launch Bitwar Data Recovery software on your windows and select the partition of the corrupted SD card and then click "Next".

    Select Device

    Step 2: Select the Scan Mode

    There are three modes to scan data, you can choose the "Quick Scan" mode to scan first. If you cannot find files in this mode, try Deep Scan. The deep scan will search every sector of SD card to find all existing files.
    When you want to recover formatted files from the SD card, you should select "Formatted Recovery" here.

    Select Scan Mode

    Step 3: Select the file types 

    Select the file types you want to recover, you can also choose "Select All Types" to recover all files from the SD card. Then click "Next" to start scanning.

    Select File Type

    Step 4: Preview and recover lost files

    After the scan, you can filter the scanned out files by file name, type, path and time. Then you can double-click them to make a selective recovery. After determining the file you want, click the "Recover" button to save it to hard disk or other external devices that can be used.

    Preview and recover lost data

     Warm Tips to Protect your SD Card:

    ● Never remove an SD card while turning on/off your devices.
    ● Never remove your SD card while saving and viewing a file.
    ● Do not take or see new pictures on low battery mode.
    ● Never change your SD card when the device is on.
    ● Use SD cards from big brands such as SanDisk, Kingston, Lexar, Panasonic, Sony, etc.

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