bsod in normal mode Page_Fault_in _Non_Paged_Area

Please upload your msinfo32.nfo file. To get this:

• Click on the Start
• 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:

STOP 0x0000003B: SYSTEM_SERVICE_EXCEPTION 
Usual causes:  System service, Device driver, graphics driver, ?memory
BugCheck 3B, {c0000005, fffff800035dadaa, fffff88002ab8e80, 0}
Probably caused by : ntkrnlmp.exe ( nt!ObpLookupDirectoryEntry+16a )
---------------------------------
STOP 0x00000050: PAGE_FAULT_IN_NONPAGED_AREA
Usual causes:  Defective hardware (particularly memory - but not just RAM), 
Faulty system service, Antivirus,  Device driver, NTFS corruption, BIOS
BugCheck 50, {fffffffffffffff3, 0, fffff8000355c93e, 0}
Probably caused by : ntkrnlmp.exe ( nt!CmpKcbCacheLookup+1de )

OK
What antivirus are you using?

Please uninstall all stuff related to AVG and Norton. They are known to cause BSoDs.
Use free MSE, it's light weight and is most compatible with windows 7. Make a full scan once installed and updated

• Norton Removal Tool
• AVG | Download tools and utilities
• Microsoft Security Essentials - Free Antivirus for Windows

Then run the System File Checker that scans the integrity of all protected Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible

• SFC /SCANNOW Command - System File Checker

Follow this tutorial for SFC again

• SFC /SCANNOW : Run in Command Prompt at Boot

Try uninstalling AVG stuff with

• Download Revo Uninstaller Freeware - Free and Full Download - Uninstall software, remove programs, solve uninstall problems

Yes you can but remove AVG also. Did you try with revo uninstaller?
Try the normal way from control panel