Installing retail dvd on partition

[superpimp]

Hello

 

I have installed iATKOS v5.5i on a partition (which worked out fine, just the QE problem with my 8600M GS).

I have formatted that partition and want to install the retail DVD on it but it doesn't allow me. I must repartition my HDD and I can't install it to that specific partition (but I was able to install the iATKOS).

 

Any ideas (also for the 8600M GS, i've tried EVERYTHING)?

 

Thanks in advance

 

Specs:

 

HP Pavilion dv9520eb

Intel Core 2 Duo 2GHz

2 GB RAM

2x 150GB HDD

nVidia 8600M GS