Unlocking UEFI/BIOS

Hi all, just joined and hope someone can help me sort out the above problem, I have a PB TE69KB laptop running Win8.1, I am trying to install a new HDD and also install Win 7 as I don't like 8 at all, when accessing BIOS via the F2 key all except user and HDD password are greyed out, I have updated everything but still no joy, secure boot is enabled but as said I can't access it, the new HDD is recognised but when I put the Win7 disk in the CD drive I am told it is locked. I read in your forums about using the shift key on shutdown, tried it no luck, also tried changing PC settings for UEFI didn't work either, any help/suggestions would be appreciated. Personal opinion Win8 is to intrusive,
Thanks in advance

Read the attached threads in the entirety. It seems that if you have one of the units with an AMD CPU there's nothing you can do. But if you have Intel you can flash the BIOS and allow some mods.

https://www.bios-mods.com/forum/Thread-REQUEST-Packard-Bell-TE69KB-bios-unlock

Welcome to the forums.

If you are uninstalling Windows 8 because of the horrific UI, YOU CAN HAVE WINDOWS 7 LOOKING WINDOWS 8 in less than 30 seconds:
TRY IT AND YOU WILL SEE:

http://www.classicshell.net/downloads/






Then browse to this file:

Hi Robert, thanks for the help with this, guess I'll have to stick with 8.1, one of the reasons for wanting to install Win7 was so I could play The Witcher 1 and 2 which 8 will not recognise even with compatibility wizard, thanks again for the help,
Cheers