Acer aspire4720Z my laptop keys does not functioning and the screen appears pxe-e61media test failure. Is something wrong with the hard disk?

the cable to the hard drive is bad or the motherboard is bad,

Hard drive failure.

The error PXE-E61: Media test failure usually means the hard disk has failed or the hard disk needs re-seating or the disk controller is faulty. First - re-seat the hard disk and reboot the computer. If the computer does not boot up then reboot and go into the BIOS configuration to see if the BIOS detects the hard drive. If it doesn't detect the hard drive then it could be faulty.
Then the hard drive needs to be replaced in the computer/laptop, Windows installed and the computer or laptop's device drivers plus your programs etc. to get a functioning computer/laptop again.

The keyboard needs replacing. Replacement keyboard for your laptop maybe available from this WEB site.
PXE-E61 ERROR
The error PXE-E61: Media test failure usually means the hard disk has failed or the hard disk needs re-seating or the disk controller is faulty. First - re-seat the hard disk and reboot the computer. If the computer does not boot up then reboot and go into the BIOS configuration to see if the BIOS detects the hard drive. If it doesn't detect the hard drive then it could be faulty.
Then the hard drive needs to be replaced in the computer/laptop, Windows installed and the computer or laptop's device drivers plus your programs etc. to get a functioning computer/laptop again.

hi,
PXE is an ability to boot from a network server for your operating system. and machine will tend to fall back on this as a last resort to find bootable media (IE the hard drive with an operating system on it.) so it would appear that if that message comes up and it doesn't do anything further, then your hard drive is either disconnected/ bad/ or infected badly. on a rare occasion the machines bios could wig out and remove the setting to even try to boot of the hard drive leaving a PXE boot only. this is rare but could happen. I would suggest you boot the system up and access bios. to check for the presence of a hard drive and the boot order setting to include a hard drive. the esasiest test is to connect a cdrom with and operating system cd on it. and see if it boots to that if so. you have most likely got a bad hard drive.

GL
Hope this helps
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thanks

Jammer

Your computer is attempting to boot over the network (something that only works with a server on the network) PXE E61 Media Test Failure Error
You can get this message if the boot device order is wrong in your computer (go into bios and check) but more often, the computer has tried to boot from the hard drive and dvd and failed before trying to boot from the network. It sounds like the hard drive has been failing for a long time and is now so bad the disk to disk no longer works. Replace the hard drive and reinstall using the recovery DVDs you created. If you didn't create them, you may have to contact Acer for a set.

The error PXE-E61: Media test failure usually means the hard disk has failed or the hard disk needs re-seating or the disk controller is faulty. Please click on this link and follow my instructions :- http://www.fixya.com/support/r4377704-pxe_e61_error

well i think you are asking for to use your dell cd to install in your sister's laptop.maybe it will not work because they are specific system configured .you can't use them everywhere.

It is not finding your hard drive, what type of laptop do you have? This is usually a corrupted bios or faulty BGA chip

it looks like no system in harddisk or hdd is broken down.