Same problem. I bought my son an Acer Aspire One D270 and now we can't get into it because he forgot his password. I have trie

[kintnerjac]

Acer Aspire One D270 unknown password and no bootable device insert boot disk and press any key

 

[Barty1884]

We cannot assist with bypassing passwords.

As for "no bootable device", there's a variety of potential causes there - anything from a damaged HDD, to a corrupt OS....to the drive not being boot priority #1.