How to fix no boot device on emachines e442 for free

1. Press and hold Power and Vol- until the device reboots and small white text shows up saying press Vol+ within 5seconds for recovery. Do not press Vol+.
2. It will then prompt you to cold-boot in to either recovery or android, follow the directions on screen to select android and start.

That seems rather annoying to have to do every time you restart the ****** thing. The permanent fix requires either root access via terminal emulator under the installed version of android, or running a remote shell on it with the Android sdk. I chose the latter.
As with all ASDK tomfoolery, start the adb server
adb start-server
Check to make sure the device shows up
adb devices
Start the required remote shell session
adb shell
Run the follow magic command to make everything happy again
echo boot ' dd of=/dev/block/mmcblk0p3 bs=1 seek=0
And then reboot the device.
reboot

Try a new battery charge overnight before doing anything to computer.after overnight charge look on side of computer for a very small hole. Insert a thin needle push in the reset the computer should reboot if it does not have all file take down model and brand go on Internet and order boot disc system for 10.00 when you receive disc load computer will WORK GUARATEED!!!!

The system is trying to boot from a designated device (like a usb drive, an iso file or a mounted drive) that doesn't have a boot partition on it.

Go go into the boot select order and change the setting to a bootable drive

Hi to fix this problem go to bios settings and there select the hard drive on witch you've got system files then save and reboot. If you need more help let me know.

If your laptop appears to boot up and the hard disk LED flashes, then the problem is probably a back light fault. This can be a faulty inverter or a faulty CCFL lamp. Please click on this link and follow my instructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

on startup press f2 or del key to enter bios setup,configure boot option selecting 1st boot device as hard disk

FORMAT AGAIN

press delete at  startup 
go2 BIOS option
1ST BOOT DEVICE CD/DRIVE
2ND BOOT DEVICE CD/DRIVE
F10 SAVE
RESTART PRESS F12

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Seems like an issue with the hard drive.
Try resetting BIOS.
If that doesn't help, u will have to check whether your hard drive is good.

When you reboot, go to BIOS, restore factory BIOS settings. If that doesn't help, you'll need to reinstall your OS.

it probably says insert suitable boot device. If you are trying to boot from a cd go into the bios and set the boot device priority to CD as priority. If hard drive then set hard disk to the top.