Sandisk Extreme 64GB - Slower write speeds after system format

Hello there,

I am in the process of replacing my first Sandisk Extreme 64 GB due to speed issues. I was tinkering with Parted Magic but I cannot make the flash drive appear on the list. The notice “This routine can only run for disks supporting the Security Mode feature set” keeps showing up. I managed to have my external USB HDD shown in the list, but not anymore.

How did you manage to make the flashdrive appear on the ATA Secure Erase list?

Thanks in advanced