I have a Vaio VGN-FZ240E running Vista. Tried to boot Windows 10 ISO from USB stick (from Rufus), and that did not work. Also tried nternal optical drive. Did not work. Formatted USB with NTFS first.
BIOS had external drive enabled. Also removed all other boot options besides the external drive such has internal HDD, etc. Just got message, "No operating system." PC runs fine otherwise, just want the new Windows 10 OS.
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