How to Fix a Corrupted SD Card and Recover Data

To fix a corrupted SD card and recover data, start with one rule: stop writing to the card immediately. Every new file can overwrite data you still need. Consequently, this guide orders recovery before repair. Furthermore, it warns honestly that no method guarantees success.

Step 1: Try the Simple Checks First

Remove the card and reinsert it carefully. Then try a different card reader, USB port, or computer. Check Disk Management to confirm Windows still detects the card. Sometimes the reader, not the card, causes the failure. Rule out hardware contact problems before deeper steps.

Step 2: Recover Your Files Before Repairing

Copy every file Windows can still open to your computer first. For inaccessible cards, use reputable recovery software before repairs. Microsoft’s own Windows File Recovery tool can also scan damaged drives. Microsoft’s community guidance on recovering files from a corrupted SD card recommends File Recovery for RAW-format cards especially. Save recovered files to a different drive, never the card itself.

Step 3: Repair the File System With CHKDSK

Note the card’s drive letter in File Explorer. Then open Command Prompt as administrator. Run chkdsk followed by the drive letter and the /f switch. Windows then checks and repairs file-system errors it finds. However, skip this step entirely on RAW-format cards, where CHKDSK cannot run.

Step 4: Format Only as the Last Resort

Formatting erases the card’s file structure completely. Therefore, format only after recovery attempts finish. Use the exFAT format for cards used across phones and cameras. If a card corrupts repeatedly afterwards, retire it permanently. Failing flash memory never heals itself.

In short, recover first, repair second, and format only last. That order gives your photos and documents their best chance.