What the pxe-e61 media test failure means is your computer is trying to boot up from the network instead of your hard drive and is unable to find it.
Go into the Bios on check the boot up order. Make sure your Hard drive has priority over LAN (network boot), hard disk needs to be above it on the startup list.
Also check the Bios to make sure it actually sees your hard drive. If it doesn't it might be completely dead or disconnected.