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8 May 2023  Ashley S. Miller  Specialist of Customer Service Dept.
 

Summary
The partitions on the SD card were lost suddenly when you used the SD card, or the SD card partitions were removed by mistake when you deleted the partitions of the disk. How to recover the deleted partitions in these cases? This article will introduce the reasons why SD card partitions are lost and some solutions to fix them. If there are some important data on your SD card, you can use the methods recommended in this article to recover them.



CONTENTSCONTENTS

table iconPart 1: The Reasons Why Partitions on SD Card Are Lost or Removed
table iconPart 2: Solutions to SD Card Partition Recovery
Part 3: Check and Repair Damaged SD Card
sd card partition recovery

Part 1: The Reasons Why Partitions on SD Card Are Lost or Removed

Partitions on SD card are lost, and the files in the partitions cannot be viewed and accessed in the Files Explorer. When you check the status of the lost partition in Disk Management, it becomes “unallocated”. The reasons why these issues occurred are as follow:
● When you clean the partitions, one of them is removed by accident or by mistake.
● Power failure may cause that partitions cannot be accessed.
● Diskpart command may clear all partitions or volumes while SD card is being repaired.
unallocated disk space

Part 2: Solutions to SD Card Partition Recovery

1. Recover Data from Partitions with Renee Undeleter If There Is Important Data in it

① What is Renee Undeleter?
Renee Undeleter is the software specializing in data recovery. It can recover the deleted files and the lost files from the emptied Recycle Bin and the formatted disk. The software supports 4 scan modes including Fast Partition Scan, Whole Partition Scan, Whole Disk Scan and Image Creation, which provides comprehensive solutions for you to recover lost data easily.
Renee Undeleter - Powerful Data Recovery SoftwareRenee Undeleter data Recovery software

Easy to use Only simple steps to recover data from storage devices.

Multiple scan modes Fast partition scan, whole partition scan and whole disk scan for different recovery needs.

File types Support to recover pictures, videos, audios, documents, mails, etc.

Supported storage devices Recover data from recycle bin, SD card, external disk, etc.

Supported systems Windows 10, 8.1, 8, 7, Vista, XP, 2000 and Mac OS X10.6, 10.7, 10.8.

Easy to use Only simple steps to recover data from storage devices.

Multiple scan modes - 3 scan modes for different recovery needs.

Supported storage devices Recover data from recycle bin, SD card, external disk, etc.

Free TrialFree TrialFree Trial

3000 users have downloaded Renee Undeleter and found data back!

① How to perform SD card partition recovery with Renee Undeleter?
Here are the steps:
Step 1: Connect SD card to the computer via card reader. Download and install Renee Undeleter on the computer. Launch Renee Undeleter and click on the option [Whole Disk Scan].
Note: Please do not install Renee Undeleter into the source disk in case that the data is overwritten.
select whole disk scan in renee undeleter
Features of Data Recovery:
• Fast partition scan – Recover the files after emptying Recycle Bin or deleted by mistake without data backup.
• Whole partition scan – Recover lost files caused by inaccessible or formatted partitions.
• Whole disk scan – Analyze and access partition information, and scan the whole partition completely.
• Image creation – Create a partition image for partition to back up the current status of the partition.

Step 2: Next, select the SD card and click on [Next] to go on.
Renee Undeleter scan SD card
Step 3: Wait for the scan process. It will find out all partitions from the SD card. After that, the window “Select the partition you want to scan” will pop up, and you can select a target partition. Otherwise, all partitions will be scanned, which will take more time.
recover partition with Renee Undeleter
Step 4: Files can be previewed during the scan process. If target files have been found, you can check the box of target files, click on the [Recover] button, and recover data to other disk on the computer. If you intend to recover data to the source partition, you can refer to the following solution to rebuild partitions.
sd card data recovery with Renee Undeleter

2. Rebuild the Partitions on the SD Card If There Is No Important Data in it

If there is no important data in the partition, you can recover the deleted partition directly in Disk Management. Here are the steps:
Step 1: Right-click on the [Start] menu, and click on Disk Management.
Step 2: Find out the disk of the SD card and right-click on the unallocated partition. Then, select the option [New Simple Volume]. After that, follow the wizard to set the capacity size, drive number, file system, etc.
Tips: If the SD card is used in the Android phone, it’s suggested to select the FAT32 or exFAT file system, because most Android phone doesn’t support NTFS.
Step 3: The partition will be recovered, and you could check it via File Explorer.
Please read: Differences and Features among FAT32, exFAT and NTFS
create simple volume for SD card

Part 3: Check and Repair Damaged SD Card

If the partition on SD card disappears suddenly rather than being removed by mistake, it’s possible that the SD card is not working or is damaged. Therefore, check and fix it after partition is rebuilt.

1. Check the File System Errors in Windows

Here are the steps:
Step 1: Open File Explorer. Right click on the partition of SD card, select [Properties] — [Tools], and then click on the button [Check].
check disk
Step 2: Click on [Scan and repair drive]. If errors are found, you may need to reboot your computer to repair the file system.
scan drive

2. Use the CHKDSK Command to Repair SD Card

Step 1: Type cmd in the search box at the lower left corner of the computer screen. Then, select the option “Run as administrator”.
run as administrator
Step 2: Type chkdsk F: /f /r /x in the command prompt and press [Enter] to check and repair the errors of SD card.
Chkdsk: checks the volume’s file system and file system metadata for logical errors and physical errors.
F： refers to the drive number of the SD card partition.
/f will repair errors on the disk.
/r will find bad sectors and recover readable information.
/x refers to forcibly unmounting the volume if necessary; all open handles of the drive will be invalid.
chkdsk F: /f /r /x