New
#11
UEFI was around at time of VISTA, but the pcs were not generally suitable or capable in those days.
Even if pcs said they were eufi capable, early implementations were rather flakey, and it was often better to stick to a legacy bios install.
I would download the iso (probably best to choose 32 bit) from here
Tech Bench
and then create a new usb installation stick using rufus making sure to select an mbr based installation.
Then make sure bios is set to legacy bios if pc has eufi capability.
Then boot from stick, and install it.