Acer 4520 laptop media test failure

The system is not finding any bootable media (Hard Drive) and is attempting to boot via the network card (PXE Boot) the error message is saying that there is not PXE network to boot from and it is exiting the process.
Generally, this is caused by a hard Drive failure. Reseat the drive and or drive connections and see if the system will find the hard drive.
Generally, a Hard drive failure

check your cable connection

Hello.

That error message usually refers to a hard disk failure. Your hard disk cable could be loose or faulty. Or, your hard drive would need to be replaced.

I'd suggest to check the cable and run your system's hardware diagnostics (often F2 or F12) when your system boots.

Hope this helps.

i think your harddrive got a problem.Maybe the hd are defect.Go to the bios(press `del `when start up)Than look if you can see the hard drive.

Sounds similar to this problem, one I was just looking up myself:

http://www.fixya.com/support/t342751-broadcom_undi_pxe_2_1_v10_0_9

The solutions shown may help you.

your e-machine is set to boot from the network (PXE = Netboot)

go to your BIOS and make sure you boot from your hard drive

Not always the Hard drive, boot into the bios setup utility and de-select network bootfrom the boot options. If it tries to network boot first you will always get that failure.

you have a failed hard drive and will require a replacement.

The BIOS, which handles the initial start up of your computer, cannot find your hard drive and thus cannot boot your operating system (ie, Windows). Open up your computer and confirm the power cable is firmly connected to the hard drive and that the cable that connects the hard drive to the motherboard is firmly secure. If both of these check out, then try downloading this bootable CD on another computer. This CD, among other things, has a few hard drive utilities that will help further diagnose the problem. http://www.ultimatebootcd.com/ Finally, if the utilities on this CD are unable to see the hard drive itself, then is may need to be replaced. Try testing with another hard drive or another cable to connect it to the motherboard.