For those not aware, the Samsung 840 evo drives had a flaw where old data written to the drive would be very slow to read. Samsung finally released the DOS/linux/mac .iso version this fix here. http://www.samsung.com/global/business/semiconductor/minisite/SSD/us/html/support/downloads.html iso: http://www.samsung.com/global/busin.../software/Samsung_Performance_Restoration.iso install guide: http://www.samsung.com/global/busin...e/Samsung_Performance_Restoration_DOS_v10.pdf zip: http://www.samsung.com/global/busin...sung_Performance_Restoration_USB_Bootable.zip Does anyone know how to properly install this to a bootable USB drive? Samsung's manual intentionally defers this to other sources. I need to flash my macbook but don't have an optical drive.