Trying to install windows 7 on preinstalled windows 8 laptop

I just bought an HP laptop with Windows 8 on it. I cant stand windows 8 and wanted to put 7 back on but im running into some problems. When i finally boot from the cd and proceed to install windows, it asks me which disk I want to partition, there are five currently which are below. But i cannot install windows 7 on any of the disks because i keep getting this "windows cannot be installed to this disk. the selected disk is of the GPT partition style"

1. Disk 0 Partition 1:WINRE OEM(Reserved)
2. Disk 0 Partition 2: Type System
3. Disk 0 Partition 3: MSR (Reserved)
4. Disk 0 Partition 4: Primary I HAVE ALREADY FORMATTED MY PRIMARY.
5. Disk 0 Partition 5: RECOVERY

Im stuck right now because my primary disk is formatted and i cant seem to get windows 7 installed so im stuck without an OS right now. Is there anything i can do to fix this? If there is anything else you need to know just ask. Thanks for any help! Waiting for reply i need to fix this asap!

   Information

We always assume you have made your Recovery Disks using the OEM manufacturer's Recovery Media Creator app the first day you had your new PC.
& made the Startup Repair CD.
Recovery Drive - Create with USB Flash Drive in Windows 8
System Repair Disc - Create in Windows 8

Did you make the OEM manufacturer's Recovery Disks?

http://h10032.www1.hp.com/ctg/Manual/c03502680.pdf

HP/Compaq said:

Creating HP Recovery media

HP Recovery Manager is a software program that offers a way to create recovery media after you
successfully set up the computer. HP Recovery media can be used to perform system recovery if the
hard drive becomes corrupted. System recovery reinstalls the original operating system and the
software programs installed at the factory, and then configures the settings for the programs. HP
Recovery media can also be used to customize the system or aid in the replacement of a hard drive.

To Downgrade to Windows 7.
Downgrade Windows 8 to Windows 7

No I didn't but will that tut still work?

The tutorial works. If you do Step ONE to SIX.