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.

Nov 162013

sd-card-errorSelf-storage within camera offer limited capacity of storage space, memory cards can expand the amount of photos and video footage that a camera can hold. However, when using your camera, you might experience a memory card error. This renders its temporarily unusable or unable to display or offload photos and videos.

So we handpick 6 common memory card problems and their fixes. Straightforward solutions are presented for each issue.

1. Memory Card Is Write Protected or Locked

SD memory cards have a lock on them that prevents memory from being stored on the card while the lock is on the “on” position. If the memory card is in the locked position and a message will appear, signifying that the memory card is write-protected or locked when you try to record photos or videos,

The solution for this problem is simple. Go to check how to unlock a memory card.

2. Card Cannot Be Used Error Message

Sometimes the camera will display a message that the memory card can’t be used. In this case, it is not clear what the problem is, only that the camera is not properly reading the card.

When you receives this message, the first step is to turn the camera off and back on. Don’t do so while the camera’s busy light is on. Then you are able to view photos and videos by pressing the camera’s playback button. If this still does not solve the problem, you should try to back up the card’s data on the computer and format the memory card.

3. Missing or Unreadable Files

Some of photos or videos appeared to be missing or unreadable?

In this case, a piece of card data recovery software is required to restore the seemingly lost photos and videos. If software still does not work, you should take your memory card to a computer or camera repair center, or sent to a data recovery center. Whether either of these methods is successful in recovering photos and videos or not, the memory card should always be formatted after recovery is attempted.

4. Memory Card Runs Slowly

At times, it might seem like a memory card is transferring data much more slowly than usual.

In cases such as this, it may not actually be a problem with the card. Every memory card has a speed rating that indicates how quickly photos and videos can be transferred from the card to another storage device. If the card has a low speed rating, transfer times will be longer. It is also possible that the memory card is performing sub-optimally. In this case, formatting the card may solve the problem.

5. Damaged or Corrupted Card

Memory cards are sensitive devices that are prone to damage. Immersion in water and being subjected to extreme heat or cold, can damage or corrupt a memory card. In this case, the memory card is generally unusable. The best that you can hope for is to recover the data on the card.

6. Computer Will Not Read Card

Sometimes a computer will not read a memory card, even though the memory card works just fine with the camera. This is problematic because it makes transferring photos and videos to a practical storage device inconvenient. The issue here is likely with the computer, rather than with the memory card.

Firstly, try another USB port. Failing that, try downloading drivers for your computer’s operating system. Some older computers with older operating systems are not capable of reading memory cards larger than 2GB, but updating the operating system’s firmware generally solves the issue by making the operating system compliant with larger memory cards.

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 052013

Many people encounter the same issue that their SD card is not available to use. Generally, there are a number of reasons that you cannot your SD card. In this article, we list six common SD obstacles that lead your SD card not available to use.

1. The SD Card is in the Wrong Format

If your SD become unavailable to use, try to think about the last time you used it. Have you used it in multiple device, different phones or different cameras? There’s a chance that your SD card is actually formatted for a different device thus it can’t be ready by your new device.

In this occasion, you need to remove your important files from your SD card to your computer and then use your new device to reformat the card.

2. The SD Card is Ejected Unsafely

If you ejected your SD card from a computer while it is still being read, you could possibly make it can’t be used. And sometimes it even caused file corruptions. This is why we always suggest you remove your SD card safely. You have to reformat it to use it again and for your corrupted files you can use Card Data Recovery software to recover them.

3. The SD Card is Physical Damaged

Sometimes you cannot use your SD card is because it is physical damaged. Be such a tiny thing, SD card is easy to be physical damaged. If your SD card became unavailable to use because of this reason, I am afraid you have to buy a new card.

4. The SD Card is Locked

SD cards have the ability to be locked so none of the files are changed or erased – pretty nifty. It’s very easy to lock and unlock your card. If you look on the side of the card, you’ll notice that there’s a little switch. Just flip it away from the locked position, and you’re golden.

5. The Card Reader is Too Slow

If you have an older or cheapie card reader, then it very well may not keep up with the speeds of today’s SD cards. You need to find a newer and faster SD card reader to read your card properly.

6. The Write Speed isn’t Fast Enough

Your SD card may be unavailable to use because it is too old or too slow for the device you are using on it. You need to use the right SD card for your device according to your device’s manual.

These six reasons are the most common reasons why you cannot use your SD card on your device.

Sep 242012

Besides being very small and cheap, USB flash drives are really simple to use: plug one into a computer’s USB port and you can access the documents stored on the drive immediately. You can also run portable programs from the drive without having to install them on the host computer. Because program settings (e.g., favorite bookmarks in Firefox) are also saved on the drive, it’s like having your own personal computing environment with you wherever you go.

You can use enjoy benefits for a USB flash drive:

1.     File Storage

Thumb drives can be used to store files for special projects, or if you have no room to store them otherwise. They are good for storing information for specific purposes, because you can have a different drive for each purpose.

2.  Backing up Data

Thumb drives can be useful for backing up documents and other files. Files can be added and deleted like in normal computer memory, and you do not have to use several CDs.

3.     Transporting Data

Data transport is simple with thumb drives, as long as both the source computer and the destination computer have USB ports. Files are simply copied to the drive from the source computer, then copied to the destination computer from the drive.

4.     Saving on Public Computers

Information found or created on a public computer can be saved to a thumb drive, which means you do not have to email yourself or lose your data, and you do not have to worry about anyone else finding it.

5.    Durability and Size

Drives are more durable than CDs, so you will not lose all your data because of a scratch. They also have more room to store data than CDs, so what might take four or five CDs only takes one drive.

 Posted by at 11:50 am
Mar 092012

While transferring photos from camera to PC, you got this error: “SD Card Error:This device cannot start”. When you try to plug the card again to your computer, it doesn’t appear in “My Computer”

Other SD card error messages including: Card not initialized, Read error/Write error, the card cannot be used, fix SD card error: This device cannot start, remove SD card error: This device cannot start, get rid of SD Card Error: This device cannot start, etc.

Generally, there are two reasons why the data on SD card becomes inaccessible. One is logical damage, the other is physical damage.

For logical damage, it prevents access to the data on the drive, but the computer operating system still can recognize the card. In this case, some software like Card Data Recovery can help you get back the data in SD card.

Physical damage is more complex than logical damage. In general, SD card includes two parts: memory chip and a controller. The controller writes and reads the data from the memory chip.

If the controller damaged, but the memory chips kept well, you can still get back the data. In most cases, this issue was caused by the drive conflicts. To fix SD card error, first, look for the device that’s listed with an exclamation point and uninstall it. After doing this, unplug any removable drive devices and restart your computer. After reboot, insert your faulty SD card back into your system. If it still fails to show up in ‘My Computer’, proceed to your Windows ‘Control Panel’. Open ‘Administrative Tools’ and then load ‘Computer Management’. Now select ‘Disk Management’. Look for your removable device and if listed should show it without a drive letter assigned to it. Right click your removable device and choose the ‘Change Drive Letter…’ option. Now select a new driver letter for your SD card. You had better choose one higher than what it was trying to use before in case that a similar conflict will happen again. When the drive be recognized by the computer, use data recovery software to help you retrieve the lost data.