BSOD when trying to run a virus scan

[guppigrl]

A few days ago my computer started running very slowly. I had not downloaded anything new or added anything new to the computer. I thought I might have a virus even though I had a current version of McAfee running so I tried to run a full scan, it wouldn't complete. I tried it a few times, it would never complete. I downloaded Malwarebytes and ran that, it didn't find anything. I ran Superantispyware, it found over 600 adware tracking cookies, but quarantined and deleted them. The computer was still running at a snails pace, I could barely use it because it would stop responding. I downloaded Avast Virus scanner and tried another scan and then I got the BSOD. At that time I didn't know what to do and the codes went away before I could jot them down. The next day I decided to clean install of Windows 7, still thinking I might have a virus infection, so I reinstalled my whole operating system (maybe overkill I know, but I really wasn't sure what to do). After the reinstall, the computer is running much better, still somewhat slow, but I get the BSOD when I try to run a virus scan still. The error code this time is 0x00000019 which google tells me is a bad pool header. I have no idea what that is. I also ran a disk check and I have the results of that as well. I don't really know what to do at this point. Looking for some help.

Is Windows 7 . . .
- x86 (32-bit) or x64 ? I have 64
- the original installed OS on the system? I am not sure how to answer this since I just re installed the operating system
- an OEM or full retail version? I think it is an OEM, I got it from Dell
- What is the age of system (hardware)? The computer is about 2 years old.
- What is the age of OS installation (have you re-installed the OS?)

Thanks!
Dayna

 

[marsmimar]

Hello Dayna and welcome to Seven Forums.

Many people (including one of our Forum experts) think that McAfee contributes to a lot of the computer problems folks experience. I happen to agree. I'd uninstall McAfee through control panel > programs and features and then run the McAfee uninstall tool to remove any left over remnants. (See item # 22a this list.) If you installed any other real time anti-malware programs see if there's an uninstall tool for them as well.

Once you've cleaned your computer of all security software I'd install the free Microsoft Security Essentials at least for the time being. (It's designed to play nice with Microsoft operating systems.)

Next I'd suggest you check for any damaged or corrupt system files by running a System File Checker scan from an elevated command prompt (option two.) If any problems are noted run the scan 3 times rebooting in between each scan.

http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

See how your computer is working. If any problems remain post back for more help.

 

[guppigrl]

I don't have McAfee installed right now at all. Once I reinstalled the operating system I didn't reinstall McAfee. I installed Avast but I can uninstall that and see what happens. I will also run the System File Checker.

 

[guppigrl]

I did everything you said and the computer is still running very slow. Any ideas on what I can try next?

 

[marsmimar]

There may be some kind of conflict going on with installed programs or apps. You could try running a Clean Startup (aka Clean Boot) to see if it can isolate the problem.

http://www.sevenforums.com/tutorial...ation-conflicts-performing-clean-startup.html

If still no joy you might consider some other troubleshooting steps as recommended by one of the Forum experts.

http://www.sevenforums.com/tutorials/220165-troubleshooting-steps-windows-7-a.html