Dual Boot Linux Lite and Windows 8

[gold_finger]

We'll just keep going on this thread -- don't worry about starting a new one.  Looks like OP abandoned it.

After I reboot, the laptop just hangs up and wont go into BIOS.. Any ideas ?

If you're saying the laptop won't boot at all now (not even into Windows), then I'm not sure what happened.  Shot in the dark:

• Unplug from wall outlet if it's plugged in
  
• Take battery out
  
• Push and hold power button for 15-20 seconds
  
• Put battery back in and plug into wall if battery isn't charged
  
• Try turning on again and see if error got cleared.
  

Regarding your pictures, the very first one seems to show the per session boot menu.  (That should be the menu you need to use.)  On that, I would guess that the third entry down (one that says just "Sandisk") is the one you want to use.  I believe that should be the Legacy boot option for the USB because the sixth entry down specifically says it's the UEFI option for it.  I have a feeling you probably figured that yourself and tried it with no luck, but if you didn't -- try that entry.

The fifth picture looks to be of the boot menu for normal booting of computer every time vs. the per session boot menu (used for one time changes to booting).  So, I don't think you need to mess with that page at all.

Honestly, I'm at a loss if that third entry down on first pick doesn't work.  You've disabled Secure Boot and CSM is enabled, so it looks correct.  I don't know why it's not working for you.  (Don't know why DVD isn't working either.  Doesn't make a whole lot of sense.)

Noticed that you have a Ubuntu entry in pic #5.  Do you have that installed to system in UEFI mode?  Did you have any problems with booting that USB/DVD?