Are you also facing such a situation where the partition on your SD card is lost, making you unable to access the data inside? You've landed the right page. This guide will focus on lost partition SD card recovery and introduce a free and effective tool for lost partition data recovery.
You might have accidentally deleted a partition on SD card, or it could be lost for some other reasons. Windows will only prompt you to format or initialize the partition but cannot help you recover the files on it. This is because once you follow Windows’ prompt to format or initialize the partition, all data on the SD card will be erased. Losing a partition on SD card can feel like your data has simply vanished.
Thankfully, it's not the end. Lost partition recovery is possible with the right tool. But before jumping into the detailed steps, let's explore the potential reasons for lost partition on SD card to prevent similar situations from happening again in the future. Here are the possible reasons:
🔆Accidental Deletion: One of the most common causes is human error—users may mistakenly delete a partition while managing disk space or using disk tools.
⭕Unintentional Formatting: Formatting the SD card, especially when prompted by Windows saying “you need to format the disk before you can use it,” can remove the existing partition structure.
🔔File System Corruption: Improper removal of the SD card, sudden power loss, or failed read/write operations can corrupt the file system, making the partition unreadable or disappear.
🔍Virus or Malware Infection: Some viruses can damage or erase the partition table, hide partitions, or corrupt the card’s boot sector, resulting in lost partitions.
🛠️Bad Sectors or Physical Damage: Over time, SD cards may develop bad sectors due to wear and tear, leading to partition damage or disappearance.
This section will show you how to recover lost partition on SD card, including both file recovery and partition restoration. Whether you’re a beginner or an advanced user, find effective methods to fix the lost partition issue and get your SD card back to working order.
Since Windows cannot directly access the lost partition, third-party data recovery tools can be put to use. Even if the partition is lost or deleted, the files may still exist on the SD card. A reliable lost partition data recovery tool like MyRecover can scan unallocated or lost space on your local storage and retrieve your files quickly. This is ideal for SD card lost partition recovery. Here are the standout features of MyRecover.
✅No Command Line Needed – Simple GUI, fully visual interface for easy file recovery.
✅Handle 500+ Data Loss Scenarios – Recover from deleted partition, formatted hard drive, emptied Recycle Bin, system crash, virus attack, etc.
✅500+ Devices Support – Recover files from all types of devices like SSD, HDD, USB flash drive, SD card, internal hard drive of game console, cameras and more.
✅Supports 1,000+ File Types – Including documents, photos, videos, audio, archives, email, and Outlook data files.
✅Wide Compatibility – Work not only on Windows 11 /10, but also on Windows 8.1/ 8/ 7 and all Servers.
Step 1. Download and install MyRecover on your computer from secure channel.
Step 2. Launch it and select the “Partition Lost Recovery" section, choose the lost partition to scan for lost files, then click "Scan". The lost SD card partition will be marked as "Lost partition" here.
Step 3. Choose files you wish to recover from the recoverable lists and click "Recover". You can use the "Filter" function in the right upper corner to find the files you want to recover quickly.
Step 4. Select a safe location to save the recovered files.
Once the process is completed, the message indicating successful recovery will be displayed. You can check and access the recovered files by clicking on "Browse" or the destination folder path.
As mentioned earlier, file system corruption is also one of the causes of SD card partition loss. You can use the CHKDSK command to repair and eliminate logical errors on the SD card. The CHKDSK command can scan for and automatically fix detected file system errors, bad sectors, and other such issues.
Step 1. Open "Command Prompt" and run it as administrator.
Step 2. Type the command "chkdsk G: /f /r" and press "Enter". Replace the drive letter "G" with your actual drive letter.
This command will scan file system errors and attempt to repair them automatically. If the partition loss is caused by such logical errors, it will become accessible again after being repaired with CHKDSK.
Viruses and malware can erase the partition table, leading to partition loss on the SD card. You can use Windows Defender, a built-in tool in Windows, to remove these viruses and malicious programs. Partitions that were lost due to this reason will return to normal after the viruses are removed.
Step 1. Go to "Settings" > "Update & Security" > "Windows Security" > "Virus & threat protection".
Step 2. Click "Scan options" to choose a scan mode based on your needs. This will take a relatively long time because it will scan your entire system and remove viruses and malware.
If the SD card partition is just missing a drive letter or marked as "Unallocated" in Disk Management, this indicates that the SD card partition may have been accidentally deleted. Disk Management in Windows can help you restore the partition structure and create a new partition.
Step 1. Press "Win + X" and select "Disk Management".
Step 2. Locate to the partition marked as "Unallocated", right click on it and choose "New Simple Volume".
Step 3. Check the new volume size and assign a new drive letter, then click "Next".
Step 4. Select a file system based on your needs and click "Finish" to start the process. Don't forget to check the "Perform a quick format" option. Then put the recovered files using MyRecover into the new partition.
This method may format the SD card, so use it after recovering your data with a tool like MyRecover.
1. How to recover lost memory on SD card?
Connect the SD card to your computer using a suitable card reader, then use professional data recovery tools such as Windows File Recovery or MyRecover to scan the card and recover lost data from SD card.
2. How to recover an unknown partition?
First, use a professional data recovery tool like MyRecover to recover the data in the unknown partition, and then restore the partition through methods such as rebuilding the partition table.
3. Can you undo a hard drive partition?
Yes, you can delete the partition in Disk Management. But this way will delete all data from this partition, which is the only way to undo a hard drive partition. You’d better back up the data in the partition before deleting it.
A lost partition on SD card doesn't mean your data is gone forever. By acting quickly and using the right approach, you can often recover lost partition SD card and retrieve your important files. For anyone facing data loss on Windows, MyRecover offers a reliable, beginner-friendly solution that balances power and safety, perfect for those who need their files back without complicated steps.
If you’d like to unlock more advanced features such as unlimited data recovery capacity, previewing file contents in advance, and recovering data from a crashed system, consider upgrading to the Professional edition of MyRecover.
