Hi marcus_gurley,
Welcome to Sony Community!
What is the format, type, and speed of the hard drive you installed? Do you have a copy of recovery disc? Are you trying to install a new OS using a USB drive or CD/DVD?
Kindly access BIOS, and reset it then try to install again. You may also check the information about your hard drive.
[PS: We do not recommend upgrading or installing Windows 10 OS to units that originally came with either Windows 7, Vista or XP.]
Regards,
Vincent
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