|I agree withg KX above, however you need to boot from another device in order to continue on from this.|
Have you checked if there is an answer here:-
Would have thought you should a have a recovery cd/dvd for your Acer, if it has a cd/dvd drive
Check the bios, to see if it provides a boot order option. You should *NOT* have the hard disc as first in the queue.
Please advise back on progress.
Good Luck - Keep us posted.