Some flash drives have to be formatted first before you can store files on them. But how many times it does, depends on the tools default setting, or if it has an option for the user to do more or less.Not every flash drive out there can be used with a Mac computer right out of the box. Then (depending on that tool) it will do it again & again. Or it may have its own proven way with a certain array of one or the other. Tools to clean ( delete) storage devices write all ones or all zeros, then rewrites over that with just the opposite. It's the way those ones & zeros are arranged that are the entire key to if it can be read. From the CPU, the GPU, the memory, the BIOS, everything reads & writes data to & from one componet to another using ones & zeros in a certain configuration that is A MUST for it to be read. When data is written to, accessed from, and/ or stored on a device, all of that data consists of nothing but ones & zeros.

There are as many tools out there today to delete data, as there are drive manufacturers But, whatever tool you do use to wipe it, always look at the tools information on how it's done. However, is that the proper way to securely wipe all the data from a flash drive? If not, what is?Ĭlick to expand.Just in-case you didn't do it yet. I know that's a big no no for SSDs because that will severely degrade their life and you will not get the areas that is reserved for over-provisioning. Just write random things to them over and over again.

What about a USB flash drive or an SD memory card? They are essentially SDDs, yet most the information I read online say to wipe them like an HDD.

I know to you have to wipe the different drives using different methods because of the differences in their composition and how they function. I wipe my HDD drives using either Kill Disk or any other software that will just overwrite the entire drive with random characters a few times over. I wipe my SSD and NVMe drives with either the manufacturer's software tool using the secure erase functions, or I load up Parted Magic and use the secure erase function on there. How do you securely wipe USB flash drives? I guess the real question is, do you wipe it like an SSD or an HDD?

Wipe usb drive