Hi ostych, Systems shipped with a 32GB SSD are pre-configured with Intel Smart Response Technology to use the SSD as a cache device for conventional hard drive for faster operations using Intel Smart Response Technology (ISRT). In order to install windows 7 on your system, you may try the steps below: If you are still able to boot to windows 8, search for ‘Intel Rapid Storage’ from the Start Screen, select Accelerate tab and then click Disable acceleration. Go to the BIOS screen by pressing F2 at the Dell logo 4-5 times; navigate to ‘Advanced Tab’ and set ‘SATA Operation’ to ‘AHCI’. Press to Save and Exit.  Try installing the windows after performing the above steps. Keep me posted with the results. I will be glad to assist you further.
Hi,I bought Dell Inspiron 7720 17R and installed another hard drive into it. So now I have 1x 32GB SSD and 2x 1TB HDD. Laptop came with pre-installed Win 8, which is using SSD + HDD disk, I want to install Win 7 on that new hard drive, but I was not able to create bootable Win 7 on my Kingston 3.0 flash drive (I used program Rufus or even tried to do it manually via command prompt). I even tried to install Win 7 from pre-installed system, but installation crashes after reboot and shows me BSOD 0x000..7B. Corrupted hard drive is out of question, I checked it, did the surface scan, and even tried to copy data on it. It works fine.Could you please advise me how to install Win7 on that new hard drive?Thank you very much.
Inspiron 7720, Win 7 installation on second Hard Drive