You can go into device manager and right click your graphics driver then select properties and select roll back driver.Here is a shot.



Also you may need to re-enable this entry via ccleaner.Prior to rebooting.
O4 - HKLM\..\Run: [XGIWatchDog] C:\Program Files\XGI\twatdog.exe

Sorry about that sometimes these things happen but its nothing that cant be fixed.



Edit: This has to do with graphics as well and also may need to be re-enabled.
O4 - HKLM\..\Run: [RegServer] regserve.exe

No thats ok just please complete the prework and attach the logs here and I will move your thread since you say this computer is old there may be a chance that there is some malware on it.If you are still experiencing problems after you have been given the all clear by the security team then we will continue but I suspect that there may be malware on your machine.
http://www.pchelpforum.com/xf/threads/prework-please-read-before-posting.131846/

Yes but you need these logs as well.
http://www.pchelpforum.com/xf/threads/prework-please-read-before-posting.131846/#post-824670 Otl log


http://www.pchelpforum.com/xf/threads/prework-please-read-before-posting.131846/#post-824672 aswMBR Log

Last thing we will need is this.
http://www.pchelpforum.com/xf/threads/prework-please-read-before-posting.131846/#post-824670

No that is the Extras file from otl you will need to Follow these instructions.

Instructions Part 1 Diagnostic Scan With OTL:


Please download OTL to your Desktop. (If you already have it downloaded, then just follow the instructions below).

• Double click on the icon to run it. Make sure all other windows are closed and to let it run uninterrupted.
• Under the Custom Scan box paste this in
  
  Code:

  %systemroot%\Fonts\*.com
  %systemroot%\Fonts\*.dll
  %systemroot%\Fonts\*.ini
  %systemroot%\Fonts\*.ini2
  %systemroot%\Fonts\*.exe
  %systemroot%\system32\spool\prtprocs\w32x86\*.*
  %systemroot%\REPAIR\*.bak1
  %systemroot%\REPAIR\*.ini
  %systemroot%\system32\*.jpg
  %systemroot%\*.jpg
  %systemroot%\*.png
  %systemroot%\*.scr
  %systemroot%\*._sy
  %APPDATA%\Adobe\Update\*.*
  %ALLUSERSPROFILE%\Favorites\*.*
  %APPDATA%\Microsoft\*.*
  %PROGRAMFILES%\*.*
  %APPDATA%\Update\*.*
  %PROGRAMFILES%\bak. /s
  %systemroot%\system32\bak. /s
  %ALLUSERSPROFILE%\Start Menu\*.lnk /x
  %systemroot%\system32\config\systemprofile\*.dat /x
  %systemroot%\*.config
  %systemroot%\system32\*.db
  %APPDATA%\Microsoft\Internet Explorer\Quick Launch\*.lnk /x
  %USERPROFILE%\Desktop\*.exe
  %PROGRAMFILES%\Common Files\*.*
  %systemroot%\*.src
  %systemroot%\install\*.*
  %systemroot%\system32\DLL\*.*
  %systemroot%\system32\HelpFiles\*.*
  %systemroot%\system32\rundll\*.*
  %systemroot%\winn32\*.*
  %systemroot%\Java\*.*
  %systemroot%\system32\test\*.*
  %systemroot%\system32\Rundll32\*.*
  %systemroot%\AppPatch\Custom\*.*
  %APPDATA%\Roaming\Microsoft\Windows\Recent\*.lnk /x
  %PROGRAMFILES%\PC-Doctor\Downloads\*.*
  %PROGRAMFILES%\Internet Explorer\*.tmp
  %PROGRAMFILES%\Internet Explorer\*.dat
  %USERPROFILE%\My Documents\*.exe
  %USERPROFILE%\*.exe
  %systemroot%\ADDINS\*.*
  %systemroot%\assembly\*.bak2
  %systemroot%\Config\*.*
  %systemroot%\REPAIR\*.bak2
  %systemroot%\SECURITY\Database\*.sdb /x
  %systemroot%\SYSTEM\*.bak2
  %systemroot%\Web\*.bak2
  %systemroot%\Driver Cache\*.*
  %PROGRAMFILES%\Mozilla Firefox\*.exe
  %ProgramFiles%\Microsoft Common\*.*
  %ProgramFiles%\TinyProxy.
  %USERPROFILE%\Favorites\*.url /x
  %systemroot%\system32\*.bk
  %systemroot%\*.te
  %systemroot%\system32\system32\*.*
  %ALLUSERSPROFILE%\*.dat /x
  %systemroot%\*. /mp /s
  %systemroot%\system32\*.dll /lockedfiles
  %systemroot%\system32\*.exe /lockedfiles
  %systemroot%\Tasks\*.job /lockedfiles
  %systemroot%\system32\drivers\*.sys /lockedfiles
  %systemroot%\System32\config\*.sav
  %systemroot%\system32\*.sys
  %systemroot%\system32\drivers\*.dll
  %systemroot%\system32\drivers\*.ini
  %systemroot%\system32\drivers\*.exe
  %systemroot%\system32\Spool\prtprocs\w32x86\*.dll
  %SYSTEMDRIVE%\*.*
  %PROGRAMFILES%\*.
  %appdata%\*.*
  netsvcs
  msconfig
  safebootminimal
  safebootnetwork
  activex
  drivers32
  /md5start
  eventlog.dll
  scecli.dll
  netlogon.dll
  cngaudit.dll
  sceclt.dll
  ntelogon.dll
  logevent.dll
  iaStor.sys
  nvstor.sys
  atapi.sys
  IdeChnDr.sys
  viasraid.sys
  AGP440.sys
  vaxscsi.sys
  nvatabus.sys
  viamraid.sys
  nvata.sys
  nvgts.sys
  iastorv.sys
  ViPrt.sys
  eNetHook.dll
  ahcix86.sys
  KR10N.sys
  disk.sys
  nvstor32.sys
  ahcix86s.sys
  nvrd32.sys
  symmpi.sys
  adp3132.sys
  mv61xx.sys
  usbstor.sys
  /md5stop
  CREATERESTOREPOINT
  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\Results\Install|LastSuccessTime /rs 

• Make sure Use Safe List is selected under all categories
• Make sure both Purity Check and LOP Check are selected
• Make sure Scan All Users is selected
• Make sure File Age is set to 30 days
• Click the Run Scan button.
  When the scan completes, it will open two notepad windows. OTL.Txt and Extras.Txt. These are saved in the same location as OTL.
  Please Attach the contents of these logs for review by our Security Team

The Security team needs the otl.txt file please you have posted the Extras.txt

Hi,


Download Combofix from any of the links below, and save it to your desktop.

Link 1
Link 2
Link 3

When saving ComboFix rename it to Belahzur.exe to prevent it from being blocked by malware.


Refer to this image:

To prevent your anti-virus application interfering with ComboFix we need to disable it. See here for a tutorial regarding how to do so if you are unsure.

• Close any open windows and double click Belahzur.exe to run it.
  
  You will see the following image:

Click I Agree to start the program.

ComboFix will then extract the necessary files and you will see this:



As part of it's process, ComboFix will check to see if the Microsoft Windows Recovery Console is installed. With malware infections being as they are today, it's strongly recommended to have this pre-installed on your machine before doing any malware removal. This will not occur in Windows Vista and 7

It will allow you to boot up into a special recovery/repair mode that will allow us to more easily help you should your computer have a problem after an attempted removal of malware.

If you did not have it installed, you will see the prompt below. Choose YES.



Follow the prompts to allow ComboFix to download and install the Microsoft Windows Recovery Console, and when prompted, agree to the End-User License Agreement to install the Microsoft Windows Recovery Console.

**Please note: If the Microsoft Windows Recovery Console is already installed, ComboFix will continue it's malware removal procedures.

Once the Microsoft Windows Recovery Console is installed using ComboFix, you should see the following message:



Click on Yes, to continue scanning for malware.

When finished, it will produce a report for you. Please post the contents of the log (C:\ComboFix.txt).

Leave your computer alone while ComboFix is running. ComboFix will restart your computer if malware is found; allow it to do so.

Note: Please Do NOT mouseclick combofix's window while its running because it may call it to stall.

Looks okay.
Can you try playing games using Google Chrome and see if that works? it could be a Firefox problem.
www.google.com/chrome