D257 hdd locked - Acer Aspire One Netbook 8.9" Notebook

No Boot disk found - usually indicates the HDD is not located.
so you need to validate the HDD is inserted properly, and locked into the HDD slot. securely,
Blue Screen asking for password, could mean several things,
basically you need with both errors, take to a good Repair Tech and have this looked into... PASSWORD can be either for BIOs or HDD,
or the system went into LOCKED MODE and password is needed to UNLOCK it.

Hello, if you're referring to a Manufacturer Restore or so called PQI service it's easy.. Restart your acer or power on, make sure you hold on the ALT key + and press repeatedly the F10 button..This will take you to the manufacturer restore.Just follow the on screen instruction.

You can't recreate what was lost after you re-partition or re-format a hard drive. The FBI can, but the average individual cannot.

Reboot and look at the bottom left should be f5 and follow instructions good luck!

First try shutdown the laptop, unplug, remove battery, plug in try to boot normally. If that fails, Insert Repair Disk and reboot from DCD/CD rom, if no disk , reboot and do a system restore/recovery. This may help: http://acer.custhelp.com/app/answers/list#s=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.

It's likely to be the BIOS that needs updating. Full solution and link to get the stable BIOS flash is here:

http://blog.robkershaw.com/2012/01/acer-aspire-one-d257-freezing-issue.htmlhttp://blog.robkershaw.com/2012/01/acer-aspire-one-d257-freezing-issue.html

Go to the link below and download Ophcrack and install it to a bootable flash drive. Boot from the flash drive and let it do it's magic. You'll have your password shortly:
http://ophcrack.sourceforge.net/download.php?type=ophcrack

Acer Support - Answers, E-Mail, Chat - Live Chat

example 10mb/150000mb..