If your Acer hard drive is locked with an "HDD Exclusive" or "Hard Disk Security" password and you don't know it, Acer’s official policy is that you must contact Acer Support directly. Because this password is stored in the drive's firmware rather than the BIOS memory, common resets like removing the CMOS battery usually won't work. Steps to Get Help from Acer Support
When activated, the drive becomes cryptographically paired to that specific Acer device. The drive cannot be read, formatted, or booted in another computer, and even replacing the drive may not solve the problem because the BIOS will still look for the exclusive handshake. call acer service to unlock hdd exclusive
Pro tip: When calling, say “BIOS and HDD security lock” to the automated system. Avoid general “repair” options, which may route you to a third-party service center. If your Acer hard drive is locked with
The term "exclusive" highlights that this is not a user-serviceable issue. Modern HDD security is robust; if the password is lost, the data on the drive is often inaccessible without the proprietary master key generated by the manufacturer. Photos to have ready The term "exclusive" highlights