If you can't boot from the cd/dvd (that's the way to install Windows from a Windows install disk) and can't use the ctrl-f11 method (or whatever it is with your PC) to go back to factory conditions, and can't get into the BIOS-setup by pressing F2 (or whatever it is in your PC) early in the boot process to set it to boot from the cd/dvd-drive, so if none of these 3 work, it's hopeless.
If one of three will get help you to get up and running, you're looking at a nice clean PC, just as it was when you bought it 4 years ago. But that's a respectable age for a laptop, so it can very well be that it's time for buying a new one. Don't you love those Windows 8.1 ultrabooks with a nice touch screen and long battery life?
white screen when i turn computer on. safe mode wont work. i wan t to wipe hard rive and do clean reinstall. unable to run cd rom manually frm command prompt. i downloaded ultimate boot cd but hav
e no way to run it.