SD Card Recovery Software

1. Change the card's drive letter. You may need to manually assign a drive letter to your SD card.
2. Try a different USB port on the same or another computer. It could be that the device's connector is no good or that the port on your computer is bad.
3. Reinstall the software drivers. This can resolve many issues with connectivity. Remove the drivers, restart your machine, and reattach the device to perform the reinstall.
4. Fix an SD card without formatting by running the chkdsk E: /f command where E is your drive letter.
5. Fix an SD card using Windows Explorer by formatting the card. The Quick format should be sufficient to resolve the problem.
6. Fix an SD card with Windows CMD by executing diskpart to re-partition the card.
7. Use a third-party tool like Disk Drill to recover your data.
8. Dealing with permanent damage can be avoided if you exercise care when connecting and removing the card from its slot. In cases of extreme damage, there is little that can be done to recover the data from the card.

You can use the chkdsk command to fix a damaged SD card on Windows. Follow these steps:

1. Connect the SD card to your machine by attaching the card's device directly or using a card reader.
2. Open My Computer and locate the card's drive letter on the Devices and drives
3. Open a CMD window and set it to run in Administrator mode. This is required for the chkdsk command to execute properly.
4. Enter this command where you replace the "G" with the drive letter of your card: chkdsk G: /f.
5. Chkdsk will scan your SD card and fix problems such as bad sectors that are making it impossible to access the files it contains.

SD cards can become corrupted in a variety of ways. Some of the most common to be aware of include:

1. Removing the memory card while an image is being transferred to the device;
2. Turning off your camera before the image has been completely written to the card;
3. Batteries running out during image transfer to a computer;
4. Exposure to malware;
5. Removing a card from its mobile device while some of its files are open on a computer;
6. Using a card that is formatted incorrectly for your device;
7. Formatting a card on your computer rather than in the camera can lead to corruption and compatibility issues;
8. Using a card in multiple devices without reformatting it;
9. Taking photos when battery life is low.

Avoiding these situations will help keep your card in good working condition.

There are a number of reasons that your SD card may not be visible to your operating system. Some of the most common causes are:

1. Your card may be write-protected. If the card is write-protected, it may not be able to be read by your computer. Check the card and physically disable the write-protection switch.
2. The card may be formatted in such a way that it can only be recognized by the device that performed the operation. Try connecting the device to your computer rather than using a card reader.
3. The card might not have been assigned a drive letter which will make it invisible to the operating system.
4. There may be physical problems with the connection due to bad contacts on the card or card reader. You may also be faced with a bad USB port.

Write-protecting an SD card is a great way to avoid accidentally overwriting its contents. However, there are situations that require you to disable write protection. This may need to be done through a physical process or by changing software attributes based on how the card was originally protected.

Physically disabling write-protection is accomplished by moving the small switch that is located on the side of every SD card. There should be an indicator on the card that shows whether the lock is enabled or disabled. Flipping the switch might be all you need to do to fix the issue.

If that does not work, it could be that you can't write to the SD card due to its software attributes being set to read-only. You can use the Windows command line to fix this issue with the following steps.

1. Open a cmd window and enter the diskpart
2. At the DISKPART prompt, enter the list disk
3. Locate the SD card in the list. It may be the disk that displays a size of zero.
4. Select the disk by its disk number.
5. Once the disk is selected, enter this command: attributes disk clear readonly.
6. The SD card should be able to be read now, as write-protection is disabled.

After removing write-protection so your system recognizes the card, you might find that there is no data accessible on the device. Here's where Disk Drill comes into play. If the card was accidentally formatted or files were lost for another reason, scanning it with Disk Drill is your best chance of recovering your data. It can reconstruct the card's file system and restore access to your valuable files.