MERGED QUESTION
Question from jfbros67 : "reinstalling windows 10"
I burned a copy of windows 10 from the Microsoft website onto a 4.7 gb dvd disk to reinstall onto a new hard drive for a dell inspiron 4 yr old machine.iwas unable to figure out the correct bios settings to use a usb,but I think it was because I didn't clean or delete all the drive partitions,wih made me install in legacy with no secure boot.now the install only boots in legacy mode from the new hard drive.im concerned about trying to do the reinstall again to get the uefi to be the boot mode,i don't want to have any problems again