Hi and welcome to SF
In this order,
Remove ESET\NOD32 from your system.
Download and install Microsoft Security Essentials
with windows firewall enable.
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.
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