Oct 092015

SD Card is a very common tool to store data, but sometimes it is frustrating, because you may see some errors when you connect your SD Card to computer, for example, “The disk is not formatted. Do you want to format it now” or “File or directory is corrupted and unreadable”, it means that you can’t read/write data on your Card. More seriously, if you can’t handle it properly, you may lose those data on memory card for ever.

When you meet this situation, you might be very anxious to restore those data on your SD Card, and you can use cmd to get your lost files back by repair the formatted or corrupted SD Card:

How to Recover Files From Formatted or Corrupted SD Card Using cmd

  • 1. Click “Run” at start menu on your computer, then type “cmd” in the input box.
  • 2. Type the command “CHKDSK [driveletter] /r” in the command promote. For example, your SD Card’s drive letter is “E”, you should type command “CHKDSK E: /r”. The command “CHKDSK” checks the specify disk for structure corruption. The paramter “/r” tells the command to repair the issues it finds.
  • 3. Go ahead and choose “Yes”. Chkdsk will report back what it has done and go to my computer and check out your drive.
recover files from sd card using cmd

But sometimes you may not be so lucky like that, and you need a third party software such as SD Card Data Recovery to recover lost files from Micro SD Memory Card. The software can restore your lost data in the much worse situation.

How to Recover Deleted Files from SD Card with Card Data Recovery

  • 1.Connect your Sd card to computer which install SD Card Data Recovery, launch the software, choose the drive you want to recover and click “Scan”.
  • 2.After scanning, you can preview all the files and choose the data you need to recover. Click “Recover”.
  • 3.Choose a path to save those data and they will be saved on your computer.

Though the two steps above, certainly you can retrieve lost data on a memory card. By the use of cmd, you only need to input a few instructions on your computer and you can get your lost data back, but it also has some risks, so we need a Card Data Recovery, which can restore lost/deleted files under the worse situation.

Feb 052015

free sd cf memory card data recoveryMemory cards like micro SD card, CF card are popular removable drives used for camera, mobile phone. It can store all kinds of data types such as photos, music, videos, documents etc. However, what if you accidentally deleted one or more files from the camera, mobile phone SD card, or for some reasons you have to format the memory card to fix the problems and lost all the data? Is it possible to undelete or restore files from memory card?

The good news is that the free memory card recovery software allows you to recover lost or deleted data from various types of memory card regardless of the reasons you lost them, corrupt, crash, virus infection or experienced a sudden power failure when transfer data from memory card to computer, etc. To do that, follow along the tips below.

Firstly, Stop Using Memory Card.

Those data lost or deleted from memory card are not gone for good, and they still remain on the memory card unless they are replaced by the new file and making the data unrecoverable. Therefore, the more you use memory card, the lesser data you can get back.

Secondly, Use Free Memory Card Recovery Software.

Card Data Recovery program has successfully restored data from every type of SD card, CF card on all kinds of camera like Nikon, Fuji, Sony and mobile phones. To begin with, free download card data recovery software.

Card Data Recovery for Windows
Card Data Recovery for Mac

Step 1: Install program on computer/Mac and run it.
Step 2: Connect memory card with PC via card reader, or connect the device with PC.
Step 3: Take the Windows version for example, select your drive and mode, then click “Scan” button to start.

card data recovery

Step 4: When the scan is complete, from the preview windows, you can view and check which files to recover, then click “Recover” button to save them on the local computer.

That’s it!

Oh and Lastly, Back Up Memory Card Regularly.

Indeed, free memory card data recovery can retrieve card data perfectly. However, we often too late to recover data, or worse, you lost memory card. But you’ll never be panic when lost data on memory card if you have a copy on computer!

Jul 252013

When you were trying to open a folder or to cut/delete something in your USB drive or memory card on computer, have you ever encountered the pop-out window that says,”This disk is write-protected. Remove the write protection or get a new disk.”? Well, write protection is a common error occurs mostly due to immediate unplugging of the drive or memory card when the transfer is done or half-done. Though in some of the case it was caused by left the write protection switch on. Then how to fix this? How to remove the write protection? Here I provide some methods that might be helpful, read on.

Method 1. Remove Write Protection by Checking your Lock Switch.

Some USB drives or memory cards have the write protection switch now, which protects the drive from being formatted or written. In some cases, the reason why we encounter the write protection error is that we left the switch on the lock  position. So when the error pops up, just unplug the USB drive or memory card and check if it is locked. (There are other USB drive brands that are well-received, like HP USB drive. )

sd card write protectionIf it is indeed locked, switch it to the unlock position, then the write protection should be removed.  however, if your USB drive or memory card doesn’t have the lock switch or the error remains with the switch is off, it could have been the problem with the file system. Try the following method to remove the protection.

Method 2. Remove Write Protection by Modifying Registry Key

Hey, don’t be intimidated by the phrase “registry key”, it’s not as difficult as it sounds. Just follow the steps below, you will find removing write protection is pretty easy.

1. Press Windows+R to open run.exe, then type “regedit” to open Registry Editor.

2. Navigate to the following path:


3. Double click the WriteProtect, change the value from 1 to 0, and save the change.

change writeprotect

4. Close registry editor and reboot your PC, then your write-protected USB drive or memory card should be ready.

What If There is NO StorageDevicePolicies?

Some of you may find that there is no StorageDevicePolicies under the Control, then what to do? Then answer is simple, if there is no such a value, create one then.

1. Under the Control folder,  right click the white space, hit New->Key, and name the folder “StorageDevicePolicies”.


2. Double click to enter the new folder, then right click on the white space, hit New-> DWORD, name it “WriteProtect”.

3. Set the value data to 0, save the change and reboot your computer.

By this step, the write protection should be removed, if not. Let’s activate the great tool Command Prompt to kill it.

Method 3. Remove Write Protection By Using Command Prompt

The command we are using in this method is diskpart, some of you may think that command prompt is way to difficult, no worries, here is a clear and detailed guide for you.

1. Once again, press Windows+R to open run.exe, then type “cmd” this time.

2. When the command prompt pops out, type “diskpart” and enter.

3. Then type “list disk” and enter.

4. When the list of your disks shows up, figure out which one is your USB drive or memory card by its capacity, and type “select disk x(x being the number of your drive)”.

5. Then type attribute disk clear readonly. When it’s done, then the write protection should be removed.

remove write protection with diskpart

By now you should be able to cut and delete files on your USB drive. If still it’s not working, then there is no much thing we can do, it’s time to get a new USB drive or memory card.

Also, if your USB drive became writable and you accidentally deleted some files or formatted it, please use Card Data Recovery to recover the lost files.

Jul 122013

Get a Message like “The disk is write-protected” when you transfer files to your memory card? A locked memory card allows you to read from them, but forbid to write to it. If you want to store folder or files as well as take photos with your camera or smart phone, you should unlock it firstly.


Solution 1: Unlock the Memory Card

  1. Look at the sides of your memory card for a tab in a slot.
  2. Move this tab to put it in line with the icon that is on the card of an unlocked padlock. This unlocks your memory card.


  1. Insert the memory card back into your camera or mobile phone.


Solution 2: Format the Card

Sometimes, you didn’t lock your memory card, but it reminds you it is locked. The data on the memory card may be corrupted. Format the card can fix this issue.

Warning: Formatting will wipe all the files on the memory card. Please back up your files before formatting.

  1. Insert your memory card into the reader in your computer.
  2. Open “My computer”.
  3. Right-click on the memory card and then select “Format”.
  4. Select the File system type. If the memory card is 4GB or higher, select “FAT32.” If the memory card is 2GB or lower, select “FAT.”
  5. Click on “Start”.
  6. After it finished formatting, right-click your memory card and select “Eject”.


Tips: If you lost files on memory card due to formatting, or other reasons, you can try Card Data Recovery and Card Data Recovery for Mac to recover lost data.

Jan 312012

Practical cases:

  1. When insert the memory card to digital camera, it pops up “memory card error” and you are unable to take or show photos any more.
  2. While transfer the photos to computer, The PC said it is unable to download anymore due to an error. When you put the card back into the camera, it says “memory card error” on a black screen and nothing else

Other common memory card error messages are “card error”, “the card can not be used”, “Read error/write error”, “can not initialized” etc.

How to solve the problem?

If you do have important data on the card, stop doing anything on your camera’s card (do not format the card or take any more photos), you have to undertake the photo recovery first. There are many tools can help you. For example: Card Data Recovery for Windows(for Windows Users) or Card Data Recovery for Mac(for Mac Users)

Connect the digital camera to PC to see whether it can be detected by PC with drive letter or not. If it is, use the photo recovery software to scan your memory card and get back the valuable data. If not, take out the memory card and connect it to PC with a card reader and then use the program to scan the memory card and retrieve data. After getting back the precious data, you can format the memory card according your camera manual. If the card can’t be formatted, try other available memory card in your hand to see whether it has the same scenario. If the card does not display a “memory card error”, then the precious one is at fault. And you may have to buy other new card.

If the data in the memory card is not vital for you, you can directly format it as the above stated.

Note: You had better replace the frequently and long-time used memory cards with new ones for all typical memory cards have a finite lifespan, approximately 10,000 write/erase operations.

The older ones are easier to get error. You had better buy new ones if the card was used for a long time or frequently erased.