Random BSODs on this Laptop (They are all random)

[Terabyte]

I've been experiencing BSODs on this laptop ever since I got it. (It was my brother's) Each BSOD I get is usually different, either when browsing, playing games, etc. They're pretty much random. I would appreciate some help

 

[Arc]

fffff880`064f4208  fffff880`0119df37Unable to load image \SystemRoot\system32\drivers\N360x64\0402000.00C\SYMDS64.SYS, Win32 error 0n2
*** WARNING: Unable to verify timestamp for SYMDS64.SYS
*** ERROR: Module load completed but symbols could not be loaded for SYMDS64.SYS
 SYMDS64+0x64f37

fffff880`064f47c8  fffff880`03c49446Unable to load image \SystemRoot\system32\drivers\N360x64\0402000.00C\SRTSPX64.SYS, Win32 error 0n2
*** WARNING: Unable to verify timestamp for SRTSPX64.SYS
*** ERROR: Module load completed but symbols could not be loaded for SRTSPX64.SYS
 SRTSPX64+0xe446

Uninstall Norton 360 and all Symentec products using Norton Removal tool.

Download and install Drivers for Atheros AR5B91 and Windows 7. Follow http://www.sevenforums.com/tutorials/97061-driver-install-device-manager.html to install it.

Update the display driver from https://downloadcenter.intel.com/ .... take the Intel® Driver Update Utility to do it.

Let us know the results. Further troubleshooting may be needed depending on the situation.