SanDisk’s SD and microSD cards are among the most widely used storage solutions for cameras, smartphones, and drones. But what happens when you delete photos from one? Contrary to popular belief, deletion doesn’t erase the data immediately — the files remain on the card until they’re overwritten. Here’s how recovery and secure deletion work on SanDisk cards of all types.
Deleting a photo simply marks its location as “available space.” The actual data blocks still exist until replaced. This is true for SanDisk Ultra, Extreme, and Extreme Pro cards, regardless of capacity or speed. The deleted data can be undeleted with a professional recovery tool like iCare Recovery Free.
When used in smartphones, deletion behavior also depends on the phone brand:
Empty these folders manually to speed up deletion. Otherwise, files may remain both in phone memory and on the microSD card.
Run a full (not quick) format on your PC to rewrite file tables and overwrite data sectors. Ideal before reselling or reusing your card.
Run diskpart
→ select your SD card → execute clean all
. This zeros every byte, ensuring complete data removal. Be cautious to select the correct drive.
Once overwritten, deleted data becomes irretrievable. High-speed SanDisk cards like Extreme Pro may overwrite sectors quickly, reducing recovery chances if the card is reused immediately after deletion.
Deleted photos usually remain on SanDisk SD or microSD cards until overwritten. You can often recover them with free tools like iCare Recovery Free — or remove them securely with IM-Magic Partition Resizer or a full format. Knowing how deletion works helps you protect your data and privacy, whether you’re using a SanDisk Ultra in your phone or an Extreme Pro in your camera.