I would like to know how can I run Tails in my windows 8 UEFI. I have a Tails usb that works in my windows 7 (64), but when I put my usb in win 8, my computer does not start on usb, my screen switch on/off already. Do you have an answers for me?
The issue is not OS-dependent, it's how the hardware works. You need to examine the following in your BIOS(it may need updates if you have an old one):
- Is the legacy boot enabled? If not, the USB drives will not be among the list of the devices that are searched at the very first phase of the boot-up process to look for an operating system loader
- Is your boot drive list locked? It's a secure habit to leave just one drive to boot from - to avoid some attack vectors. Make sure that you have checked the previous part and that the drive is in the boot list
- What is your BBS key? BBS states for an explicit list of every boot-capable device that a BIOS can see. The boot device priority list has a size of 3 or 4 items like in a half of the times, so there can be just no turn for your USB drive to be checked: a common situation is a fully unlocked list but 3 devices are HDD, CD/DVD and an Ethernet card, but the BBS menu allows you to choose the drive explicitly and it will work. Uually it can be F8, F10 or F2(if it's not used for the BIOS itself)
- Secure/Signed boot enforcement It can ruin your day if your BIOS allows you to boot only specifically signed bootloader, like NTLDR. Turn it off and Save changes in BIOS, after that you can see your device in all the lists including BBS menu if this was an issue
- UEFI boot To boot any Linux you don't need it, usually&actually, most of the times. So - if the problem still persists and the UEFI can be disabled(usually the alternate mode is called as Legacy boot or MBR boot) - give it a try.