Rufus says my USB drive has bad blocks, how do I fix it?

The flash drive is failing and should be replaced.

• The most likely cause of this issue is flash memory that is wearing out. Flash memory has limited endurance and USB flash drives tend to use lower-grade NAND which has lower endurance than the types found in SSDs. See: Can a USB thumb drive "wear out"?

• This problem cannot be resolved by the end user. The drive should be replaced as continued use can eventually result in data loss.