![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://preview.redd.it/rans60nch4441.jpg?auto=webp&s=2bfc93458c151026e8d102e486bc5ec97ff60047)
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. :
![dell optiplex boot from usb | Dell boot menu key | dell optilex bios key | Dell optiplex 5080 pc - YouTube dell optiplex boot from usb | Dell boot menu key | dell optilex bios key | Dell optiplex 5080 pc - YouTube](https://i.ytimg.com/vi/NdzAbcSt6T4/maxresdefault.jpg)
dell optiplex boot from usb | Dell boot menu key | dell optilex bios key | Dell optiplex 5080 pc - YouTube
![OptiPlex 3060, 5060, and 7060 Tower Systems: Cannot Boot to the Operating System when Hard Drive Protection has Been Enabled | Dell Canada OptiPlex 3060, 5060, and 7060 Tower Systems: Cannot Boot to the Operating System when Hard Drive Protection has Been Enabled | Dell Canada](https://supportkb.dell.com/img/ka02R000000i0I3QAI/ka02R000000i0I3QAI_en_US_3.jpeg)