Hi and welcome to SF
In this order,
Remove ESET\NOD32 from your system.
Download and install
Microsoft Security Essentials with windows firewall enable.
Update software\
driver for your Sound Blaster X-Fi Xtreme Audio
http://support.creative.com/
Download and install the new version of
Driver Sweeper.
Download the most recent software\driver for your ati
AMD Graphics Drivers & Software
Uninstall ati software\driver,restart in safe mode,run driver sweeper,choose only AMD-Display and clean,restart in normal mode.
Install the new ati software\driver,restart.
Update
DirectX
Read carefully the instructions and run
NVIDIA/AMD Video Card - Test with OCCT post here the results.
Run
RAM - Test with Memtest86+
Let it run until at least 9 passes are completed, or errors are found (whichever comes first). The longer you run it, the better.
Finish and
post back with results\news.