Disclaimer: Always back up your data. The author assumes no responsibility for data loss. This guide is for educational purposes related to the official Apacer utility.

Some Apacer drives have a physical write-protect switch (rare on USB, common on SD cards). Check the casing. If no switch, use DiskPart’s attributes disk clear readonly command.

The (often referred to as the Apacer Flash Drive Recovery Tool or Apacer Format Tool ) is a lightweight utility designed specifically to fix common firmware and logical errors on Apacer brand USB flash drives.