How do I completely wipe an SD card and make it unrecoverable?

Using Disk Wipe or similar disk erasure tools can be an effective way to make an SD card unrecoverable on a Windows computer. These tools typically overwrite the entire storage device with random data or zeros multiple times, which significantly reduces the chances of data recovery.

However, for maximum security, especially if you want to ensure that data cannot be recovered by any means, consider the following:

1. Use a reputable secure erasure tool: Programs like  specialized SD card erasure tools.

2. Perform multiple passes: Overwrite the data multiple times to prevent recovery.

3. Verify the wipe: Some tools allow verification to ensure data has been overwritten.

4. Physical destruction: If absolute security is required, physically damaging the SD card (e.g., crushing or shredding) is the most definitive method.

Note: Be cautious when using disk wiping tools to make an SD card unrecoverable on a Windows computer, as they will permanently delete all data on the SD card. Ensure you have backed up any important data beforehand.