ATT causing Battlefield 3 to crash

[AlexRJ]

Hi, recently I read the following tip on the Steam forums to speed up load time in Battlefield 3:

Originally Posted by http://forums.steampowered.com/forums/showthread.php?t=2224117

AMD/ATI Cards
Download ATT http://downloads.guru3d.com/download...33InstallRight
Click on the icon in the bottom right corner of your screen
Click on Tweaks
Click on Advanced Tweaks
In the drop down box select Multi Threaded Support
Change to 2 or 4 (Depending on how many cores you have on your CPU)Make sure the radio box above is ticked
Click apply
This should fix it for you

So I did exactly as it said, but having done so, every time I tried joining a game, the application crashes with the standard windows "Battlefield 3 has stopped working" message with the following error report:

Log Name:      Application
Source:        Application Error
Date:          17/02/2012 23:13:39
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Alex-PC
Description:
Faulting application name: bf3.exe, version: 1.0.0.0, time stamp: 0x4f26de8a
Faulting module name: bf3.exe, version: 1.0.0.0, time stamp: 0x4f26de8a
Exception code: 0xc0000005
Fault offset: 0x00107e60
Faulting process id: 0x10ac
Faulting application start time: 0x01ccedc9c22e00cd
Faulting application path: C:\Program Files (x86)\Origin Games\Battlefield 3\bf3.exe
Faulting module path: C:\Program Files (x86)\Origin Games\Battlefield 3\bf3.exe
Report Id: 0662c2b2-59bd-11e1-b2b6-00262d945feb

I have tried the following and yet the game still crashes - it was definitely working right before I followed those steps:

• Reversed what I changed in ATT.
• Uninstalled ATT.
• Restored my system to an earlier date.
• Uninstalled all display drivers with DriverSweeper and reinstalled the latest versions.
• Uninstalled, re-downloaded and installed Battlefield 3.

As none of these have worked, I'm really lost for what to do now and was wondering if anyone had any idea what might work or how the Multi Threaded options work and how to reverse what they do? Any help or advice is very much appreciated.

[Nico122]

Hello, As I read the exception code, according to Microsoft

The most typical causes for the ‘0xc0000005: Access Violation’ error are: corrupt registry, malware, faulty RAM, faulty drivers, incorrectly written, installed or updated software and even Windows security features.

This is the following reasons your game might fail.

I also play Battlefield 3 with ATI tray tools, I have not had any problems so far.

[Hellcat1992]

How can I reset ATT to default setting, there is only one way i tried is to re-install window