I bought a USB flash drive a couple of weeks ago. Today when I tried to write with Rufus the USB drive it errored out saying there was a hardware failure and when I tried again it said the disk was read-only. No matter what I did I couldn't find a way to write to the drive again. I used Rufus about 10 times on that USB flash drive. Is it normal for Rufus to destroy a USB drive so quickly or is the flash drive defective?
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Rufus does not use any kill commands on your flash drive. It does not install a special driver for USB drives. It is basically using the API of the operating system to write sector-wise information to a drive.
What distinguishes the Rufus-use from normal use of a USB flash drive is the amount of data written as a percentage of the whole drive. Such write behaviour will unmask errors much faster than just writing some little files on a flash drive. When writing images to USB flash drives you might particularly rewrite 50% and more of its content.
When in doubt you could use h2testw for Windows or F3 for linux to generate similar stress like Rufus for your USB flash drives and simultaneously verify if their labeled storage capacity is true.
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