It is possible that data can be retrieved from your failed drive if the problem is that only the boot sector is corrupted. Installing that drive in a USB caddy and connecting it to another working computer might work. We do this frequently
Windows 8 desktop is indeed quite different but you can easily make the desktop look like a windows Vista or Windows 7 computer. Installing the Classic Shell which is free, gives you this ability. This software makes the transition to Windows 8 much easier.
Here is the link
Classic Shell - Start menu and other Windows enhancements
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Computer Repair with Care,
Computer Corner
Local Computer Repair and Service- The Villages, Leesburg, and Lake County Florida
(Office) 352-460-1155
(Store) 205 W. North Blvd (441), Leesburg, Fl. 34748
(Website)
http://www.ComputerCornerFL.com