Can't install windows 8.1

Hi. Sorry if it's the wrong category, not really sure where to post it. Anyways, long story short. Last night I upgraded my windows 8 to windows 8.1, after that everything was screwed. I lost bunch of stuff, laptop slowed down and all that nasty stuff, so I decided to install a new windows from scratch. I did, but then turns out I still have some of the old folders because I didn't clean the hard drive first. Ok I said, I'll do it one more time, so I went in the bios tried whatever I knew about it (which is little, may I say) so I can boot my damn dvd with windows on. As always didn't work, so instead of looking for more info, being the idiot that I am. I went straight into the command prompt and cleaned my hard drive, now everything plus the operating system is gone and I'm stuck in bios which is missing bunch of stuff. Well, thats about it. It'll be great if you guys can help

P.S my username is well deserved

EDIT: my bios info

Aptio Setup Utility - Copyright ( C ) 2012 American Megatrends, Inc.

Main

BIOS Information
BIOS Vendor: American Megatrends
Version: 225
GOP Version: 3.0.14.2015
EC Version: 225

Processor Information: Intel ( R ) Core ( TM ) i7-360QM CPU @ 2.40 GHz

Memory Information
Total Memory: 8192 MB ( DDR3 )

System Information
Serial Number: CCN0CJ492339503

System Date
System Time

Access Level: Administrator

Advanced

Start Easy Flash
Internal Pointing Device: [ Enabled ]
Wake on Lid Open: [ Enabled ]
Power Off Energy Saving: [ Enabled ]

Intel Virtualization Technology: [ Enabled ]
Intel AES-NI: [ Enabled ]
VT-d: [Enabled]
> SATA Configuration
> Graphics Configuration
> Intel ( R ) Anti-Theft Technology Configuration
> USB Configuration
> Network Stack

Boot

Boot Configuration
Fast Boot: [ Disabled ]
Launch CSM: [ Enabled ]
Launch PXE OpROM: [ Enabled ]

Boot Option Priorities
Boot Option #1: P2: Slimtype DVD A DS8A9SH
Boot Option #2: P0: ST000LM024 HN-M101MBB
Boot Option #3: UEFI: IP4 Realtek Ethernet Controller
Boot Option #4: UEFI: IP6 Realtek Ethernet Controller
Boot Option #5: Realtek PXE B02 D00

Hard Drive BBS Priorities
CD/DVD ROM Drive BBS Priorities
Network Device BBS Priorities
Delete Boot Option

Security

If ONLY the Administrator's password is set, this only access to Setup and is only asked for when entering Setup.
If ONLY the User's password is set, this is a power on password and must be entered to boot to enter Setup.
In Setup the User will have Administrator rights.

Administrator Password Status: NOT INSTALLED
user password Status: NOT INSTALLED
Administrator Password
User Password

HDD User Password Status: NOT INSTALLED
Set Master Password
Set User Password

> I/O Interface Security

System Mode state: User
Secure Boot state: Disabled

Secure Boot Control: [ Disable ]

Save & Exit

Save Changes and Exit
Discard Changes and Exit

Save Options
Save Changes
Discard Changes

Restore Defaults

Boot override
UEFI: IP6 Realtek Ethernet Controller
UEFI: IP4 Realtek Ethernet Controller
P0: ST1000LM024 HN-M101MBB
P2: Slimtype DVD A DS8A9SH
Realtek PXE B02 D00

Launch EFT Shell from filesystem device

Also I get this, when trying to boot the DVD

Intel UNDI, PXE-2.1 (build 083)
Copyright (C) 1997-2000 Intel Corporation

This Product is covered by one or more of the following patents:
US5, 307, 459, US5, 434, 872, US5, 732, 094, US6, 570, 884, US6, 115, 776 and US6, 327, 625

Realtek PCIe GBE Family Controller Series v2.41 (06/08/11)
PXE-E61: Media test failure, check cable

PXE-M0F: Exiting PXE ROM.

Reboot and Select proper Boot device
or Insert Boot Media in selected Boot device and press a key_