![Why the screen below appear when I boot my dell Inspiron 7559? And dell logo doesn't appear? Therefore I can't access BIOS utility to boot the laptop from a USB flash drive. : Why the screen below appear when I boot my dell Inspiron 7559? And dell logo doesn't appear? Therefore I can't access BIOS utility to boot the laptop from a USB flash drive. :](https://i.redd.it/rans60nch4441.jpg)
Why the screen below appear when I boot my dell Inspiron 7559? And dell logo doesn't appear? Therefore I can't access BIOS utility to boot the laptop from a USB flash drive. :
![What key to press to enter Boot menu, BIOS Setup, Boot device options on dell, hp, lenova laptop - YouTube What key to press to enter Boot menu, BIOS Setup, Boot device options on dell, hp, lenova laptop - YouTube](https://i.ytimg.com/vi/NqLLPyq2Qdo/maxresdefault.jpg)
What key to press to enter Boot menu, BIOS Setup, Boot device options on dell, hp, lenova laptop - YouTube
![How to Change Boot Sequence in Dell Inspiron 5570 | How to Change Boot Sequence in Dell Laptops - YouTube How to Change Boot Sequence in Dell Inspiron 5570 | How to Change Boot Sequence in Dell Laptops - YouTube](https://i.ytimg.com/vi/dqC5RMJ-bO0/maxresdefault.jpg)