USB-Niresh12495-10.8.dmg downloaded.
I try installation with Usb boot
nanosecond...

I try
Hp Laptop Users Type
"Kernel Cache"=/hp -v

Still waiting for root devices
Still waiting for root devices
Still waiting for root devices
.
.
.

I try
cpus=1, GraphicsEnabler=No and busratio=25
but not again.
Thank you help!

Operating System : Windows 7 Home Premium - Service Pack 1 - ( 64 BIT )
Processor : Intel Core i5-2450
RAM : 6GB DDR3
Graphics Card : AMD ATI Radeon HD7690 M XT
750gb HDD

Create your own usbstick with myhack and a virtual machine in seven.
Extract your dsdt with this methode link

And after usbstick created edit the .list in the extra folder for he use your DSDT

Thank you.