I have an acer aspire one notebook. I've had it for almost 2 years and just last year I downloaded W.O.W and played it but while I was PLAYING until it lagged alot after lvl 21 it I enter an area in the game that made my computer lagg. and it blue screened and shut down v.v so I left it alone until today and I can't even get to my logg on screen

the message is : No Bootable device --Please restart system_
it's also beeping. theirs a low alarm clock sound and a loud -BEEP- what does this mean? is this fixable? or do I need to but a new computer?please help me and tell me if I left out some important information. Ah...it is probably your hard drive that is failing/has already failed... No bootable device means that the BIOS is not detecting the hard drive. When you entered that area that caused your computer to blue-screen it may have been reading from a corrupt sector on the hard drive.
I was going to say run http://www.nirsoft.net/utils/blue_screen_view.html to further diagnose the problem but you can't even boot into Windows.

What I would do is TAKE the hard drive out of your laptop, plug it directly into a desktop computer's motherboard, download, burn to a DVD, and run TestDisk. http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step:

TestDisk can:
Quote

• Fix partition table, recover deleted partition
• Rebuild NTFS boot sector
• Recover NTFS boot sector from its backup
• Undelete files from FAT, exFAT, NTFS and ext2 filesystem
• TestDisk has features for both novices and experts. For those who know LITTLE or nothing about data recovery TECHNIQUES, TestDisk can be used to collect detailed information about a non-booting drive which can then be sent to a tech for further analysis.