That laptop is how old? About 12 years? 14 years? Likely it does not support UEFI boot. You need to set Rufus to create the flash drive for Legacy BIOS.
I made a USB for Windows 10 x64 with Rufus, when I try to boot it on the Dell Latitude E6500 I get a screen ERROR: BIOS/LEGACY BOOT OF UEFI-ONLY MEDIA..... ETCI tried all of the setups in the Bios menu of the Dell; They are; Disabled, ATA, AHCI, IRRT....I got the same message on all Modes. I made it with NFTS file system and UEFI system setting on Rufus. Has anyone encountered this problem before?
Can't boot from Dell Latitude E6500 from USB...?