Sudden recurring BSOD, Win7 Ultimate64x (newly installed)

Hello friends,

My name is Jonathan.

Just recently formatted my HD on my Dell Inspiron 5521. Got rid of Win8 and installed 7. Two days past, and I have installed many previous software I had before, plus all win7 updates and offfice 2010 (haven't updated office). Suffering from sudden, recurring BSOD, happening about 4-5 times a day, different hours. At times while I work, other times haven't been working for a while. Have not a clue to what's causing it. Last things I installed were up to date official drivers for my onboard graphics card and the additional Radeon graphics card that came with the laptop (they were necessary to solve a video playing blur issue).

Attached is the SF diagnosis:

SF_10-07-2014.rar - Speedy Share - upload your files here

Your kind help is very much appreciated!

Welcome,

Please upload the zip to the website directly: Blue Screen of Death (BSOD) Posting Instructions

Use Revo Uninstaller to uninstall stubborn software. Opt for Advance Mode while uninstalling which allows you to remove leftover registry:-

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

Please remove Smart Defrag and carry out the steps below.

Run Disk Check on your Hard Drive for file system errors and bad sectors on it:

• How to Run Disk Check in Windows 7

Upload a screenshot of your hard disk using Crystal Disk Info:

• CrystalDiskInfo - Software - Crystal Dew World
• Screenshots and Files - Upload and Post in Seven Forums

Make a hard drive test from the hard drive manufacturers website:

• Hard Drive Diagnostic Procedure

Test your Hard Drive with SeaTools:

• How to Use SeaTools for DOS and Windows Disk Check Utility