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Please upload your msinfo32.nfo file. To get this: Start Menu -> Type msinfo32 into the Search programs and files box -> When it opens, go to File, Save -> Save as msinfo32.nfo and save in a place you will remember -> Let it finish the process of gathering and saving the system info -> Right click the .nfo file, click send to compressed (zipped) folder -> Upload the .zip file here.
Code:
fffff880`033bd9c8 fffff880`02eba8d1Unable to load image \??\C:\windows\system32\Drivers\SYMEVENT64x86.SYS, Win32 error 0n2
*** WARNING: Unable to verify timestamp for SYMEVENT64x86.SYS
*** ERROR: Module load completed but symbols could not be loaded for SYMEVENT64x86.SYS
SYMEVENT64x86+0xc8d1
Norton Internet Security / SYMEVENT64x86.SYS / Source:
Carrona.org
The antivirus you are currently using is known and contributing to your BSOD crashes, consider uninstalling it with the Norton Removal Tool and replace with Microsoft Security Essentials at least to test.
Recommended antivirus program for Windows 7 based on stability compared to others:-

Do not start the free trial of Malware Bytes; remember to deselect that option when prompted.
Run a full scan with both (separately) once downloaded, installed and updated.
Get the latest version/drivers for the Intel Rapid Storage stuff from
this link, or uninstall them if you don't need it.
Code:
fffff880`033b6098 fffff880`01059106Unable to load image \SystemRoot\system32\DRIVERS\iaStor.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for iaStor.sys
*** ERROR: Module load completed but symbols could not be loaded for iaStor.sys
1: kd> lmvm iaStor
start end module name
fffff880`01020000 fffff880`01174000 iaStor T (no symbols)
Loaded symbol image file: iaStor.sys
Image path: \SystemRoot\system32\DRIVERS\iaStor.sys
Image name: iaStor.sys
Timestamp: Thu Jan 13 07:50:12 2011 (4D2E5A54)
CheckSum: 0007188C
ImageSize: 00154000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4 Run the System File Checker that scans the of all protected
Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:
Run Disk Check on your hard disk for file system errors and bad sectors on it:
Let us know the results and await to receive the nfo. file.