Hello! I keep testing and discovered that my flash drive for some reason when formatting it in MBR does not work. No matter if it is empty, the PC does not recognize it, and when I enter the BIOS with the USB connected, it does not start, it is a 64GB Kingston DT Duo 3.0
Hello how are you ?
1) Try first to see if your usb works for you in the operating system, normally charged.
2) Look closely (this is essential), if your machine is UEFI OR LEGACY.
If it is UEFI = USB formatted only in fat 32.
If it is LEGACY, BIOS, Legacy mode, etc. etc. It can be faormated in FAT 32 or NTFS,
3) FIX THAT YOU DO NOT HAVE THE SECURYTY BOOT ACTIVATED IN THE BIOS, but deactivate it.
3) If you did this, then try to boot it in different ports, many times it happens that even if it is a USB 3.0, you must put it in a 2.0 port to boot from the bios.
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NOTE: Windows does not allow formatting fat32 on usb drives sd cards etc larger than 32 gigabytes.
If you want to drug in fat 32 your usb drive must do so with some program external to windows.
If your usb drive is not recognized by your operating system, check the device manager might have an error in yellow there.