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How to Fix File Explorer Crashes When Opening an SD Card on Windows 11

By Raj Bepari 5 min read
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SD cards are widely used in cameras, smartphones, drones, handheld gaming devices, and other portable electronics for storing photos, videos, documents, and application data. Normally, Windows 11 automatically detects an inserted SD card and allows you to browse its contents through File Explorer. However, some users experience a problem where File Explorer crashes, freezes, or restarts immediately after opening an SD card, making it impossible to access the files.

This issue can occur due to a corrupted file system, damaged files, faulty SD card readers, outdated storage drivers, Windows Explorer bugs, failing SD cards, or conflicts with third-party shell extensions. In some cases, malware infections, bad sectors, or insufficient power supplied to the card reader can also cause File Explorer to become unstable when attempting to read the card.

Fortunately, you can usually resolve the problem by checking the SD card for errors, updating storage drivers, restarting Windows Explorer, and verifying whether the issue is caused by the SD card or the computer itself. In this guide, we’ll walk you through the most effective methods to fix File Explorer crashes when opening an SD card on Windows 11.

How to Fix File Explorer Crashes When Opening an SD Card on Windows 11

Before you begin, avoid repeatedly removing and reinserting the SD card while Windows is trying to access it, as this could increase the risk of file corruption. If the SD card contains important data, avoid formatting it until you’ve attempted recovery or copied your files elsewhere. Follow the troubleshooting methods below in order.

1. Restart Your Computer

Temporary Windows or File Explorer glitches can cause crashes when accessing removable storage.

  1. Save your work and close all applications.
  2. Open the Start menu.
  3. Click the Power icon.
  4. Select Restart.
  5. Reinsert the SD card after Windows starts.
  6. Try opening it again.

A restart refreshes Windows Explorer and storage-related services.

2. Test the SD Card on Another Device

Determine whether the problem is with the SD card or your Windows 11 PC.

  1. Remove the SD card safely.
  2. Insert it into another computer or compatible device.
  3. Check whether the files can be accessed.
  4. If possible, test using a different SD card reader.

If the card crashes File Explorer on multiple devices, the SD card itself may be damaged.

3. Try a Different SD Card Reader or USB Port

A faulty card reader can interrupt communication with the SD card.

  1. Remove the SD card.
  2. Connect a different USB card reader if available.
  3. Alternatively, use another USB port.
  4. Insert the SD card again.
  5. Open File Explorer.

Changing the reader or port helps rule out hardware issues.

4. Run CHKDSK on the SD Card

File system corruption is one of the most common causes of crashes.

  1. Open Command Prompt as Administrator.
  2. Run the following command, replacing X with your SD card’s drive letter:
chkdsk X: /f /r
  1. Wait for the scan to finish.
  2. Reinsert the SD card and test it again.

CHKDSK repairs logical file system errors and attempts to recover readable data from bad sectors.

5. Restart Windows Explorer

Restarting File Explorer can resolve temporary shell-related issues.

  1. Press Ctrl + Shift + Esc to open Task Manager.
  2. Locate Windows Explorer.
  3. Right-click it.
  4. Select Restart.
  5. Open the SD card again.

This reloads the Windows Explorer process without restarting your computer.

6. Update the SD Card Reader Driver

Outdated or corrupted drivers may cause File Explorer to crash.

  1. Press Windows + X.
  2. Select Device Manager.
  3. Expand Memory technology devices, Disk drives, or Universal Serial Bus controllers.
  4. Right-click the SD card reader.
  5. Select Update driver.
  6. Install any available updates.
  7. Restart your computer.

Updated drivers improve compatibility with removable storage devices.

7. Scan for Corrupted System Files

Damaged Windows system files can affect File Explorer’s stability.

  1. Open Command Prompt as Administrator.
  2. Run:
sfc /scannow
  1. After the scan completes, run:
DISM /Online /Cleanup-Image /RestoreHealth
  1. Restart your computer.

These tools repair Windows components used by File Explorer.

8. Disable Third-Party Shell Extensions

Some shell extensions integrate with File Explorer and may cause crashes when removable drives are accessed.

  1. Temporarily disable recently installed file management utilities.
  2. Restart File Explorer.
  3. Insert the SD card again.
  4. Check whether the crashes continue.

If the problem disappears, re-enable extensions one at a time to identify the conflicting software.

9. Check the SD Card for Errors in Properties

Windows includes a graphical tool for checking removable drives.

  1. Open File Explorer.
  2. Right-click the SD card (if it appears).
  3. Select Properties.
  4. Open the Tools tab.
  5. Click Check under Error checking.
  6. Allow Windows to repair any detected issues.

This method can resolve minor file system problems without using Command Prompt.

10. Scan the SD Card for Malware

Malicious files on the SD card can cause File Explorer to crash.

  1. Open Windows Security.
  2. Go to Virus & threat protection.
  3. Select Custom scan.
  4. Choose the SD card.
  5. Start the scan.
  6. Remove any detected threats.

Scanning the card helps eliminate malware-related crashes.

11. Recover Important Files

If the SD card continues to cause crashes but is still partially readable, recover your important data before attempting more advanced repairs.

  1. Use trusted data recovery software if necessary.
  2. Copy recovered files to another storage device.
  3. Verify that your important files have been recovered.

Recovering your data should be a priority before formatting or replacing the card.

12. Format the SD Card (Last Resort)

If the SD card is accessible but continues to cause problems after recovering your files, formatting it may resolve persistent file system corruption.

  1. Back up all important data.
  2. Open File Explorer.
  3. Right-click the SD card.
  4. Select Format.
  5. Choose the appropriate file system (such as exFAT or FAT32, depending on the device you’ll use it with).
  6. Click Start.
  7. Wait for the process to complete.

Formatting removes all data from the SD card, so only perform this step after ensuring your files have been backed up or recovered.

Conclusion

If File Explorer crashes when opening an SD card in Windows 11, the issue is usually caused by file system corruption, faulty storage drivers, damaged SD cards, defective card readers, or Windows Explorer problems. In most cases, running CHKDSK, updating the SD card reader driver, restarting File Explorer, and testing the card on another device will help identify and resolve the problem.

If the issue persists, scan the card for malware, recover your important files, and format the SD card if necessary. Regularly ejecting removable storage safely, keeping your drivers updated, and using high-quality SD cards can help prevent similar issues in the future.

Raj Bepari

I’m a digital content creator passionate about everything tech.