Toshiba C55-A PSCG8E Windows7 Installation Solution

if you want to install windows 7 on Toshiba Satellite C55-A (PSCG8E ),
then here is the solution
1. Install Any version of windows 8/8.1 (Must not be modified) Original image.
2. Download This Bios File (Bios File Download Link)
3. Extract the Bios File and run exe file
4. it will ask you for confirmation to update bios
5. hit yes
6. don’t touch any key, just relax and computer should restart automatically.
7. Then To access bios in windows 8.1 go to PC settings > General> Advanced Startup>Restart
8. you will be taken to advanced option screen
9. there chose uefi firmware settings
10. then disable secure boot & change boot settings to cms boot and install windows 7
Thats it, incase you face any problem post it in comments
i will try to help
This Bios is only for laptops with part no.PSCG8E ,
if you have deifferent model please post in comments