I feel like Brody does in this instance. If you've reinstalled Windows and the system doesn"t function properly, don't even try to repair it. Just start over from the beginning.
The OS is the foundation of your system. You want it to be rock solid.
If the 2nd attempt also fails to install a stable OS, troubleshoot bad media or bad hardware.
G74SX-A1 - stock hardware - BIOS 202 - 2nd Monitor VISIO VF551XVT