Downgrade from windows 8.1 to windows 7 ultimate

[SIM IS]

Hello,
I have a Dell Inspiron 17 (5000)
And I decided that I want to use the pre-installed Windows 8.1.
So I bought a Windows 7 Ultimate 64x and tried to install it in the BIOS I set everything I had and started to boot from the CD. In the installer I deleted the old disks and create new, everything went without any problems then the system has been installed and began to guide the first run, which I filled, but in the end me waited unpleasant surprise. System wrote "Bad initialization." I repeated the process twice more, but it to me not write error and immediately shut off.
Sorry for my bad english.
Thanks for answers.

 

[reckonankit]

Its look like that you format the whole hard disk and erase all system reserve file also. so your system can't boot properly. if you have windows 8 recovery then first try to install it hope it will be work for you