Downgrading to windows 7

[Gio Andrey]

this may sound stupid, but i'm having trouble installing windows 7 64x downgrading my Windows 8 86x pro.

I keep getting hang boot on windows 7 when installing. It's all black screen with "starting windows"
my iso file is in drive: E and I'm installing it in Drive: C is that what's causing the problem?
because I tried installing in bootable flash drive, and it still failed.

everytime it restarts it gives me 3 operating system choices
it's either
Windows 7
Windows Setup
Windows 8

and then I have to reset my whole windows 8 again to get it running to normal.
Any fix for this?

 

[captaincharisma]

you can upgrade but not downgrade. that is why you are getting 3 choices it is trying to setup windows 7 as a separate OS

 

[Gio Andrey]

you can upgrade but not downgrade. that is why you are getting 3 choices it is trying to setup windows 7 as a separate OS

I've tried downgrading my OS for like thrice in the past year without any problems, i don't why I'm getting this problem now

 

[SaiYuk]

Does it work if you select the right choice?
You can edit that list using 'bcdedit' command line tool from an administrative command prompt.
WARNING: Use this at your own risk! Be ready with genuine installation media if this goes terribly wrong

ok first, create a backup of the current configuration:
bcdedit /export c:\backupfile

now list all boot entries, look at the 'description' attributes to identify the items to remove:
bcdedit /v

next, copy the 'identifier' UUID of the boot choice you want to remove, then run this command to remove it:
bcdedit /delete {UUID} /f

if something goes wrong, you can start your computer in 'Repair Your Computer' mode from the F8 list, then open a command prompt and restore the backup you took:
bcdedit /import c:\backfupfile