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Slow computer, but no virus


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#1 atza

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Posted 09 August 2012 - 11:03 AM

Hello, and thank you for looking at my post, first off, here is my system specs (I'm new to this so if I'm missing something please just let me know):
Dell Inspiron 560
Windows 7 home premium -service pack 1-64bit
Intel core duo CPU E7500 @ 2.93 GHz 2.94
8.00 GB ram
also has an AMD Gigabyte 5850 Graphics card. (hopefully that all suffices)

So here's my problem: My computer recently started performing very slowly, completely out of no where. I thought maybe I had a Virus, so I tried to get Norton to do a full system scan. When I pulled up Norton, the main screen just stayed frozen, every now and then I was able to highlight an option on the menu, but right after it would just freeze again. So being unable to use norton, I downloaded Malwarebytes and ran a full system scan... 18 hours later it finished finding nothing. So I tried to use Norton again with much patience I was finally able to get a full system scan running (by clicking in the rare times that it was responsive) so that scan took 10-14 hours and also found nothing. I then thought maybe it was a hardware issue and changed the graphics card to test it and it wasn't the issue, so I checked the hard drive sata cable and changed it with one lying around and that was also not the issue. I also checked the ram which found no problems with it (and a checkdsk start up scan of the disk to find no issues. It's very strange, because while it is performing so ridiculously slow, the CPU usage is very low. Other strange things: it even takes 30secs to a minute when I right click something for the menu to come up. I have checked all over the web to try and find the solution, but all my efforts thus far have been fruitless any assistance would be greatly appreciated
(also I hope that I'm in the proper section, I checked the categories and this seemed like it fit seeing as I have windows 7 ha)

Edit: Moved topic from Windows 7 to the more appropriate forum, at the request of staff. ~ Animal

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#2 Allan

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Posted 09 August 2012 - 11:27 AM

When you boot to safe mode do you have the same problem?

#3 ichiban1962

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Posted 09 August 2012 - 11:36 AM

Listen i'm only a newbie here but here's my pennies worth.
was your system up to date, not just windows but all your software including Flash, Quicktime any Adobe software, Java, any browsers etc.
Had you installed any new software prior to you machine slowing down?,
especially freeware as sometimes they can be loaded with extras you dont need(crapware!)
You said you used "checkdsk" and your hdd is fine have you thought about the possibility
that windows has become corrupt? why not try a repair installation with your windows disk
(I might be wrong about this but hopefully someone who knows more will correct me)
And on a similar note have you used windows backup and restore to take it back to an earlier time.
and last but not least the chance is you are infected but you are in the right place to find out.
Check the other relevant part of the forums Am I infected? What do I do?
this would be a very good place to start

best of luck anyway

When you boot to safe mode do you have the same problem?

Ooops forgot that one

Edited by ichiban1962, 09 August 2012 - 11:38 AM.


#4 balkrish999

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Posted 09 August 2012 - 11:41 AM

How Big is your HDD? and how much is filed? Try deleting some crap, if a scan takes 18 hours + im guessing you have alot of files, get rid of any junk files. Goodluck. Also try Malware Bytes

#5 atza

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Posted 09 August 2012 - 11:48 AM

Thanks both of you for your speedy reply!

Allan, When I boot to safe mode I have a different problem: in safe mode if I try to run an antivirus scan, the screen turns black and says that it can't find a signal, s I'm forced to turn off My computer manually, as for it still being slow, let me try again and get back to you on that

Ichiban1962, I appreciate your feedback, I did try to restore my system to a few earlier dates, all the while I had the same problem (should have added that in my original post) Everything is up to date, and for a while I suspected that the program "steam" which updated recently could have been the problem, but I have since ruled that out. I don't know how to check if Windows is corrupt, and unfortunately the windows 7 disk did not come with the computer (I remember when you could do a recovery without it in XP, is this different now in windows 7?) It feels like my computer is infected simply because of how out of no where the system became so slow, but i've used 3 different scans now, and none have found anything, plus each scan takes the entire day, where as it used to take maybe an hour. I had Norton Antivirus run a weekly full system scan as a preemptive measure and have not had problems in the past.

Thanks again for both of your's feedback!

#6 atza

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Posted 09 August 2012 - 11:51 AM

Balkrish999, My hdd says it is 422gb free of 916, that number has been relatively stagnant lately, so I don't personally think it is responsible for my drastic system slow down but of course I could be wrong

#7 atza

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Posted 09 August 2012 - 11:53 AM

one other thing that I forgot to add: I am unable to connect to the internet, when I use a cable it says that there is no network identified (and it's plugged in on both sides of course) and when I use wireless I am able to "connect" to the network and it says that I can connect to the internet, but I can't connect to any webpages

#8 balkrish999

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Posted 09 August 2012 - 11:55 AM

Umm, i know this man sound, crazy but try a QUICK SCAN on Malwarebytes, and Try to remove any Junk Files, Its a new PC, so im guessing it should have a Factory Restore Partion, meaning, you don't need a cd/dvd TO restore your pc back to New :) Again look in the laptop Manual. It Should be there. Goodluck

#9 Allan

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Posted 09 August 2012 - 11:56 AM

Despite your protestations to the contrary, my initial guess is malware.

#10 atza

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Posted 09 August 2012 - 12:09 PM

Allan, I didn't mean to sound so sure that it wasn't a Virus, I honestly have no clue (i'm really a novice with computers), and if it is malware/ a virus, how should i go about getting rid of it? None of the software That I've used has been able to find it.

Balkrish999, it's actually a desktop and 3-4 years old, does that mean that I need the windows disk?

#11 Allan

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Posted 09 August 2012 - 12:23 PM

I'm going to ask a staff member to move this thread to the Am I Infected forum. Please don't do anything else until a malware specialist responds.

#12 atza

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Posted 09 August 2012 - 04:15 PM

(I'm assuming this has been moved to the right place now) So while in safe mode, I was able to run a full system scan without it shutting down, and it seems that the computer runs at the speed that it should, so my question now is: how do I get rid of this bleep virus

and thank you for putting this topic in the right place :thumbsup:

Edited by atza, 09 August 2012 - 04:16 PM.


#13 atza

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Posted 10 August 2012 - 12:04 PM

does anyone know what other options I have to get rid of this nasty virus? It seems none of the conventional means to get rid of it are working, again, any help on the matter will be greatly appreciated




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