can't find secure boot option in bios

[mantvyyys]

Hello, I have a Toshiba Satellite A665 laptop and I can't find the option for secure boot...
I checked everything and tried to set a supervisor password.
I need to turn secure boot off, because I want to install other os.
It has windows 8.1
Sorry for my bad English.

Thanks in advance.

 

[rgd1101]

Old laptop might not have secure boot at all, what issue did you get when you try to install another os?

 

[mantvyyys]

Old laptop might not have secure boot at all, what issue did you get when you try to install another os?

Usb, CD all the same. It says Bootable media not found or something like that.

 

[rgd1101]

So it currently does NOT have any OS? did you change the boot seq to use the usb or cd?
What new OS are you trying to install? how did you make the usb/cd?

 

[mantvyyys]

So it currently does NOT have any OS? did you change the boot seq to use the usb or cd?
What new OS are you trying to install? how did you make the usb/cd?

Now it has windows 8.
It had windows 7, but i somehow managed to install windows 8 by running the disk while in windows 7.

I tried changing the sequence, but it only can boot to ssd.
Tried kali, mint linux, windows, mac os x.
I made windows with media creation tool.
And mac os x with transmac
for linux i just loaded the files onto the cd/dvd (all os'es worked on my main pc with disabled secure boot)