To unlock a hard drive when you have forgotten the password and see the message "Call Acer Service to Unlock HDD Exclusive," you must contact Acer Support
If you have the password but want to remove the lock permanently: Contact Acer | Quick Response for Tech and Customer Service
Data Recovery Services: If the data on the hard drive is crucial and you haven't backed it up, consider consulting with a professional data recovery service. However, this can be expensive and there's no guarantee of success.
To my frustration, the technician treated this as a standard software glitch. I was walked through the useless ritual of pressing F2 to enter BIOS (which I couldn't access properly due to the lock) and performing a hard reset. It took about 15 minutes of convincing the agent that this was a firmware-level security lock, not a Windows error.
- Disable HDD Exclusive Mode in BIOS: Enter BIOS (F2) → Security tab → Set “HDD Exclusive” to Disabled.
- Do not remove CMOS battery without a service guide.
- Never interrupt a BIOS update. Use a UPS during updates.
- Back up your data regularly – some unlocks require a full drive wipe.
Sie haben Ihr Passwort vergessen?