Earlier you ran Chkdsk on the hard drive and it finished, so I would assume the HDD is good. However....if you can, follow the directions for checking your HDD in Post #6.
Your initial problem was inability to access internet. You said (post #5):
I found that if I restart the PC with the ethernet cable in and do not take it out, it would maintain connection to the internet.
I have had this happen numerous times; the NIC (Network Interface Card) will recognize the ethernet cable, but the wireless end of the card failed. This is a common problem. If you follow my directions in Post #2 about a USB network adapter it may solve your problem. However, now we have the added problem of a corrupted OS, so we have to take care of that first.
I want to try to download 8.1 again with the correct BIOS settings.
Note that any Windows OS (Operating System) has nothing to do with BIOS settings. The BIOS is a physical chip that is installed on your motherboard and the settings come from the manufacturer. Upon boot, the first thing the CPU does is shoot an inquiry to the BIOS chip for information on what to do next (boot the hard drive with Windows, of course). If that BIOS setting gets corrupted it can stop a computer cold. A reset is the only way to return it to normal and that is what you must concentrate on first. After Windows is up and running you can tweak it to your heart's content, but the default setting are usually best for general computing.
I have no knowledge of the steps for resetting the BIOS on your particular lap, I suggest you consult the manual if you have it, or the manufacturer's website may have one for download, or possibly there is a manufacturer's customer help section you can access and post a question.
Well, I've tried to install Windows 7 and that didn't work either.
Ok, that complicates things. If you attempted to install Windows8 over W7, you may have a corrupted mess on your hands. After you get the BIOS reset, see if you can boot into Windows. If you get error messages (I expect you will), post them here. If you get the message, "insert operating system disk" or words to that effect, insert your Windows installation disk. When it gets to the screen where it offers to remove the existing partition, OR it offers to reformat, do it. Note that everything on the drive will be irretrievably lost but hopefully you can install Windows successfully.
[EDIT]: syntax correction: should read, "If you attempted to install W7 over Windows8...."
Edited by ranchhand_, 07 August 2015 - 10:26 AM.