EaseUS Partition Master

[Fixed] Can't Write to SD Card on Windows 10/8/7 🔥

Learn how to fix SD card write issues on Windows 10, 8, and 7. Discover Effective Solutions if you can't write to SD card. If you are facing a similar error, dive into learning.

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Updated by Sherly on Apr 09, 2024
⚙️Complex Level Low, Beginners
⏱️Duration 5-10 minutes
💻Applies to
  • Can't write to SD card on Android/Mac
  • Can't write to SD card on Windows 10/8/7
  • Can't write to SD card on Samsung Phone
  1. Fix 1. Switch the Physical Lock on the SD Card
  2. Fix 2. Remove Write Protection via CMD
  3. Fix 3. Disable Write Protection in Registry Editor
  4. Fix 4. Run CHKDSK Commands to Fix the SD Card
  5. Fix 5. Format SD Card

Do you know why you can't write to an SD card on Windows 10? What's going wrong with your SD card? Well, we know what the faults are in your SD and why you can't use it on your Windows 10/8/7 or other devices. There could be multiple causes; it freezes our ability to use and operate our SD card freely. Sometimes, we can't write to SD cards on Windows 10/8/7 due to write protection, viruses attacks, compatibility issues, corrupted SD cards, etc. There are two user cases:

Hi, I can't write on any SD card, but I can read and copy the contents on my Asus PC. The problem is not with the SD because, on another identical computer, the SD works. Can anyone advise me what to do? Thanks. - from Microsoft

Your SD card isn't working correctly and has been set to read-only to prevent data loss. - from Reddit

We'll focus on these issues and try to solve the "unable to write to an SD card" error on Windows 10 or Windows 8/7. Let's start. Share these fixes with your friends or other users who need help.


How to Fix Can't Write to SD Card Error on Windows 10/8/7

These are a few common reasons. EaseUS will provide a few effective solutions to fix this intimidating problem quickly and explain the causes/reasons in detail. So, don't worry. We're going to eliminate this issue. An incorrectly installed SD card may result in failure to write to the SD card. If this happens to you, just unmount the SD card and reinsert it into your computer, Android device, Mac, or Samsung phone. If reinstalling the SD card doesn't work, prepare a Windows PC and try the fixes below:

Fix 1. Switch the Physical Lock on the SD Card

It's time to move towards practical solutions and remove the write protection from the SD card to get back the ability to use your SD card on your terms. Let's begin by following the below guides.

This is a very simple solution. If your SD card has a physical lock, you just have to switch it by sliding up to the unlock position. That switch works to lock or unlock the SD card. 

Follow the steps to fix SD card read-only error:

Step 1. You'll see a lock switch on your SD card from the left side.

Step 2. Slide up this lock switch to unlock position. The below picture shows an unlocked SD card.

turn off the physical lock

Fix 2. Remove Write Protection via CMD

Using Command Prompt (CMD), you can remove the read-only attribute of your SD so that it no longer remains write-protected.

Follow the steps:

Step 1. Open Command Prompt. Search "CMD" in the Windows search box. Once it appears, right-click on it and choose "Run as administrator."

Step 2. In the Command Prompt, type the "diskpart" command and press "Enter."

Step 3. Type "list disk" and hit "Enter" to show the disks available on your PC.

Step 4. Type "select disk" and the disk number. Let's suppose for a while. Our SD card is disk number 1, so we'll type "select disk 1" and press "Enter."

Step 5. Type the command "attributes disk clear readonly" and press "Enter."

cmd clear write protection

Step 6. After removing the write protection via CMD, type "exit" to quit it and restart your system.

Fix 3. Disable Write Protection in Registry Editor

The Registry Editor also lets you turn off write protection on your SD card. Nevertheless, utilizing it carefully when modifying the registry is crucial, as not adhering to the correct procedures can result in significant complications for your Windows operating system. Therefore understand, learn, and apply the following steps carefully:

Step 1. Open Registry Editor. Just type "regedit" in the "Run" box and hit "Enter."

Step 2. When you see a popup, select "Yes."

Step 3. Expand the list of "HKEY_LOCAL_MACHINE" by clicking > greater than sign.

Step 4. Again, expand the "System" list and "Current Control Set."

Step 5. Click "Control" and choose "Storage Drive Policies."

storage drive policies

Step 6. Set the value of the digit in the DWORD box to 0, and click "OK."

Step 7. Close the Windows Registry and restart your PC.

Fix 4. Run CHKDSK Commands to Fix the SD Card

The CHKDSK command can find SD card file system corruption errors and remove the bad sectors that cause issues and bind your ability. As a result, you can't write to an SD card on Windows 10/8/7. The CHKDSK command is also helpful in repairing the SD card without formatting. If you meet any problems during the process, click the following link to get more information: CHKDSK Not Working on Windows.

Follow these instructional steps to run the CHKDSK command and fix the SD card:

Step 1. Connect the SD card to your PC, and open the Command Prompt.

Step 2. Enter chkdsk [letter of the sd card] /F/R/X. For instance, if your card is assigned the drive letter C, you would input what the picture shows:

chkdsk commands

Upon completing these steps, Windows will initiate a file system check and repair process for the SD card, which typically takes a few minutes. If the command window displays "Windows has made corrections to the file system." Your damaged SD card has been successfully repaired.

Fix 5. Format SD Card

If you're in that situation where you need to format your SD card to correct file system type and remove errors, use EaseUS Partition Master. There is no better option than EaseUS to format your SD cards and other external drives easily and quickly fix issues.

Free Download 

Windows 11/10/8/7100% Secure

EaseUS Partition Master is efficient for SD card formatting that aligns with the appropriate file system type and rectifies errors. The tool features an intuitive interface, enabling users to format SD cards more significant than 32GB into FAT32, while Windows built-in tools can't perform and fail. Remember that, before formatting your SD cards, you should back up the entire data, as you know formatting an SD card will remove everything. So, preserving your valuable data beforehand is a wise decision.

Follow the steps to format your SD card by EaseUS Partition Master:

Step 1. Launch EaseUS Partition Master, right-click the partition on your external hard drive/USB/SD card which you want to format and choose the "Format" option.

Format External Hard Drive/USB/SD Card - 1

Step 2. Assign a new partition label, file system (NTFS/FAT32/EXT2/EXT3/EXT4/exFAT), and cluster size to the selected partition, then click "OK".

Format External Hard Drive/USB/SD Card - 2

Step 3. In the Warning window, click "Yes" to continue.

Format External Hard Drive/USB/SD Card - 3

Step 4. Click the "Execute 1 Task(s)" button in the top-left corner to review the changes, then click "Apply" to start formatting your external hard drive/USB/SD card.

Format External Hard Drive/USB/SD Card - 4

Download EaseUS Partition Master to optimize your SD card formatting experience and take advantage of its other valuable features, such as:

Why Can't I Write to SD Card on Windows 10/8/7

When you suffer from this type of situation, various factors matter to think about why you can't write to an SD card on Windows 10/8/7. Some common reasons and possible causes are listed below:

Write-protection: If the SD card is write-protected, it won't let you write to it.

Viruses: Malware or viruses could hijack the SD card's functionality, blocking write access.

Compatibility: Incompatibility between the card's format and Windows may inhibit writing.

Corrupted SD card: Physical damage or corruption might disrupt writing capabilities.

That's it; we hope you get back your ability to write to an SD card by applying the above-discussed solutions. If you've found this information valuable, please share this article with others who might face the same situation and can benefit from this article to eliminate this frustrating and irritating issue.


Also, can't write to SD card error also frequently happens to Samsung phone. If you are facing this error, check the video below to help:


Dealing with an uncooperative SD card on Windows 10, 8, or 7 can be really irritating and frustrating. To decode the reasons that limit your SD card's potential - from write protection snags to viral interference, compatibility glitches, and corruption - we've got the solutions to break these barriers and restore functionality. And for those who want to revive their SD cards, EaseUS Partition Master stands as a reliable ally. It effortlessly formats larger SD cards into FAT32 and eliminates errors, offering a comprehensive solution. We made everything easy for you. Kindly share this article to help others to turn frustrations into triumphs.

Can't Write to SD Card on Windows 10/8/7 FAQs

This part list some other questions and answers related to why and how to fix the unable to write to SD card issue. If you've any questions and are seeking clarity, the below FAQs may help you.

1. Why can't I write to my microSD card?

This issue can stem from multiple factors, including write protection, viruses, compatibility, or a corrupted card. All these factors may lead to SD card writing failure on Mac, Android, Samsung phones, and Windows.

2. How do I enable writing on my SD card?

If you experience this problem, ensure the physical lock on your SD card is switched off first. Then, to enable writing using Command Prompt (CMD):

  • Open CMD as administrator.
  • Enter 'diskpart' and press Enter.
  • Type 'list disk' to find your SD card's number.
  • Input 'select disk [SD card number].'
  • Finally, run 'attributes disk clear readonly' and restart your system.

3. What to do when meeting 'your SD card isn't working correctly' error?

Try to find reasons why your SD card isn't working correctly in this situation. The common reasons could be write protection, viruses attacks, compatibility issues, or corrupted and physically damaged SD cards. Once you determine the causes, apply the solutions accordingly, mentioned with complete instructional steps in this guide.

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About the Author

Updated by Sherly

Sherly joined EaseUS in 2022 and she has always loved writing articles and enjoys the fun they bring. She receives professional training here, focusing on product performance and other relative knowledge. She has written over 200 articles to help people overcome computing issues.

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