[chaoscreater]

Hi guys, got a really annoying and weird problem. First of all, i'm using a laptop running WinXP SP3. I've got most of the latest updates so it's stable.

I have A LOT of antivirus programs (FULL VERSIONS) and so I'm pretty sure, if not 99% sure that i have a good defence and have maintained my PC well. I did a lot of scans recently and found no viruses or spywares etc.....

Just to give a list of what I use, and btw they're all up to date and the newest version as of 2009.

RegCure 1.6
Advanced SystemCare 3.2
Avast Antivirus 2009
BitDefender 2009
CCleaner
Combofix
Error Repair Professional 3.9.9
Spyware Blaster
Uniblue SpeedUpMyPC 2009
Spyware Guard
Webroot Spysweeper
WinUtilities
Quicksys RegCleaner 2009
Safe'n'Sec 2009
SUPERAntiSpyware Professional 4.26
Malwarebytes' Anti-Malware 1.38 PRO
Advanced System Protector


and so on.......seriously, I have ****loads of protection and no i don't run all fo them at the same time or on startup, but only some really important ones so no there aren't any conflicts etc.....


Anyway I did the scans and found no virus, maybe one or 2 registry fixes and optimization but that's about it. My PC is totally clean and safe, it's always been like this since ages ago. My PC is up to date with everything, including drivers etc.......

I use Firefox with good protection addons, e.g. addons like Adblock Plus etc.......I also use Opera, i NEVER use Internet Explorer but I did update it to IE8 and also use IE7 Pro to further protect it in case I really have to use IE for whatever reason....


Anyway I'm not keylogged or anything, I can safely say that i'm at an advanced level so i know what i'm doing. Just to let you guys know, there's nothing wrong with my PC.



Ok so finally onto the problem, it only popped up recently and i have no idea why. Everytime I turn up my PC, i get a bluescreen, it happens maybe 3/4 times when i turn on the PC. And sometimes when i've used the PC for maybe 30 mins to 1 hour or so, the bluescreen will pop up suddenly causing my PC to crash.

This is the bluescreen i get everytime i turn on the PC.



This is the bluescreen i get only when my PC has been running for maybe 30 mins or more.


I haven't installed or downloaded or been to any bad websites so i don't believe it's due to a virus. And plus, I also did some Google searches on my bluescreen error and it's due to bad drivers or hardware problem or something like that.....

the thing is, i've cleaned my drivers using Driver Sweeper (to get rid of old drivers) and i've tried reinstalling all my drivers and everything works fine. I also switched the RAM around and basically replug every hardware that's unpluggable from my laptop and everything all works fine, but the problem still shows up.....


And again, I did registry scans, used antivirus programs etc but found no problem, or at least they fixed it if they found one or 2.......


Sorry for this long post but ya plz help, i've found no solutions on Google.

Should i post a HiJackThis log?

[rwc1969]

Did you google bdfsfltr.sys? it sounds like an issue with bitdefender, conflicting AV, or malware. I'd suggest uninstalling bitdefendr and see if the problem goes away, then reinstal it and get all updates.

[chaoscreater]

yup i did and found no solution. I already uninstalled Bitdefender and still problem pops up.

[rwc1969]

Well, if you keep getting the bdfsfltr.sys error on the bluescreen then that must be your problem. Bitdefender! It's probably conflicting with one of your other many AV software. That file is still in the registry and needs to be deleted.

I would look in the registry and see if it's still there. It must be or you wouldn't get the error. then if you google the error you should find a way to remove it completely.

You should pick one AV suite and stick to it. I know you stated you only use one AV at a time, but they all keep entries in the registry and that's usually where the conflicts lie. when I upgraded my AV, I uninstalled AVG, but it still kept entries in the registry and was causing conflicts. I had to manually edit the registry to remove AVG completely.

Hope this helps!