Hey ya. Welcome. Let's see what we can do here.
1) Boot to safe mode + networking. Download and run this installer/uninstaller this remove sptd.sys. Do not update while using it as there is a choice:
DuplexSecure - Downloads
2) Navigate to C:\Windows\ and delete this driver:
gdrv gdrv.sys Thu Mar 12 23:22:29 2009
3) Download and run the AVG removal tool while still in safe mode from the sticky link in this section of the forum.
4) Boot to normal mode and update your Realtek lan driver:
Rt64win7 Rt64win7.sys Mon Mar 22 05:57:14 2010
RTL8111
5) Uninstall Daemon Tools normally. This is why you removed sptd.sys.
PowerISO is an excellent and 100% stable replacement. The disc emulation part of the software is free forever:
PowerISO - Create, Edit, Compress, Encrypt, Split, Mount, Extract ISO file, ISO/BIN converter, Virtual Drive
6) Install MSE for the antivirus.
7) Update your NEC USB 3.0 driver from the motherboard manufacturer's website.
8) Update your video card driver:
atikmpag atikmpag.sys Tue May 04 21:23:24 2010
Drivers & Support | GAME.AMD.COM
9) Update your Realtek HD Audio driver:
RTKVHD64 RTKVHD64.sys Tue Apr 06 06:17:30 2010
Run the installer once, reboot, then run it again:
Realtek
10) Uninstall the utility from Gigabyte (probably Easy Tune 6) that we deleted the driver gdrv.sys for.