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How to Fix Permission Denied When Accessing SD Card in Windows
Question details
The user is unable to open an SD card folder due to a Windows permission error.
- Product
- Windows File Explorer
- Device & OS
- Windows
- Scenario
- Attempting to access, read, or write files to an inserted SD card.
- Observed behavior
- Windows displays a 'Permission Denied' or access denied error prompt, preventing the user from viewing the contents of the SD card.
Before modifying system settings, verify that the physical write-protection switch on the side of your SD card is in the unlocked (up) position, and try plugging the card reader into a different USB port.
Adjust Windows Security Permissions
Modifying the drive's security properties ensures your Windows user account has the explicit rights needed to read and write to the SD card.
Windows uses security identifiers to control who can access specific drives and folders. If the SD card was previously used on another computer or device, your current user profile might not have the correct permissions assigned.
Open File Explorer, locate your SD card drive under 'This PC', right-click it, and select 'Properties' from the context menu.
Navigate to the 'Security' tab at the top of the Properties window and click the 'Edit' button to change permissions.
Select your current user account from the list, check the 'Allow' box next to 'Full control', click 'Apply', and then click 'OK' to save the changes.
Run Windows Error Checking
Use the built-in Windows disk tool to automatically detect and repair file system corruption that could be triggering permission blocks.
Change the Drive Letter via Disk Management
Assigning a new drive letter forces Windows to remount the SD card, which can clear up path-related access errors.
Edit Your Recovered SD Card Files with WPS Office
Once you have successfully fixed the permission denied error and regained access to your SD card, you'll need a reliable suite to manage your recovered documents. WPS Office is a free, lightweight alternative to Microsoft Office that easily handles all your essential files.
- 1. Download the Installer: Go to the official WPS Office website and click the free download button for Windows.
- 2. Install WPS Office: Run the downloaded executable file and follow the quick on-screen instructions to complete the installation.
- 3. Open SD Card Documents: Launch WPS Office and navigate to your fixed SD card drive to instantly open and edit your documents.
Frequently Asked Questions
Why does my SD card suddenly say 'Permission Denied'?
This error typically occurs if the physical write-protection switch on the SD card is locked, the file system has become corrupted, your Windows user profile lacks the necessary access rights, or the hardware is beginning to fail.
Can a faulty card reader cause permission errors?
Yes. If your USB card reader is damaged, clogged with debris, or has outdated drivers, Windows may fail to mount the drive properly, resulting in permission or access denied errors.
How do I recover data if the SD card is failing?
If adjusting permissions and error checking do not work, the SD card hardware may be failing. You should immediately use dedicated data recovery software to salvage important files and back them up to your main hard drive before replacing the SD card.
