Boot Error-trying to ReInstall Windows 10 on Dell Latitude E6420

J

JuanPacheco1

OK so while starting up my laptop I got the black screen error BOOTMGR IS MISSING. I cant get into anything other than BIOS Setup. I have the ISO file downloaded onto a USB, both 32 and 64 BIT versions. But now when I try to boot I get the error, ATTEMPTED TO BOOT UEFI VOLUME FROM LEGACY MODE, AND IT GIVES INSTRUCTIONS ON HOW TO SWITCH THE BOOT OPTION IN THE BIOS MENU. I followed these instructions, but when I try to boot in UEFI instead of Legacy I get the error that NO BOOTABLE DEVICES FOUND.


I did download the files from a MAC. I erased the USB and formatted to Fat32. Im not sure what steps to take. should I save the ISO as a different file or would a DVD or CD with the ISO mounted to it. Should I disable any of the other boot sequence options or change the sequence in any way.



I had Windows10 insider preview running before the errors occurred. Also I had just updated the BIOS for my system as well. PLEASE HELP :(

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