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Very Slow after Virus Infection


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8 replies to this topic

#1 Dave Clark

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Posted 29 April 2013 - 06:58 AM

Hi,
Had my computer cleaned of Virus by Mole over on the Spyware removal Forum and he suggested that I post in this forum to see if you can pinpoint the reason for my very slow and at time unpredictable computer. The original post I made is here :- http://www.bleepingcomputer.com/forums/t/492388/badly-infected/

I've read your pre posting and carried out defrag and CHKDSK but I still have the same problem. I'm loading and running windows without any startup items but the computer is still taking over 7 mins to boot instead of pre Virus 4mins (Which included all my startup items)

Hope you can help,

Regards,

Dave

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#2 hamluis

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Posted 29 April 2013 - 09:25 AM

Is slow booting...the only indication of a problem?

 

Louis



#3 dc3

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Posted 29 April 2013 - 09:27 AM

To start let's by running sfc /scannow.

 

The sfc /scannow command scans all protected system files and replaces corrupted and incorrect versions with correct Microsoft versions.

During this scan you may be prompted to insert your installation disc in the DVD/CD drive, if you have this disc you will want to have it available before you start the scan.  If you don't have this disc and are prompted for it you will need to follow the *instructions below for locating the i386 file.

To initiate this scan go to Start> Run and type in sfc /scannow then press enter.

If files are found during this scan which need to be replaced you may be prompted to insert your installation disc, do so at that time.   If it doesn't ask you for the disc this means that it wasn't necessary to replace any files.   In the event the the system asks you for the disc, you must visit Windows Update immediately after the scan is completed (Please note that there won't be any confirmation dialog - the program will just exit without telling you anything).

***Warning, the steps below involve entering the Registry.  If a mistake is made there this can render your computer inoperable.  For this reason I suggest that you first back up the rigistry.***

Backup Your Registry with ERUNT

  • Please use the following link and scroll down to ERUNT and download it.
    http://aumha.org/freeware/freeware.php
  • For version with the Installer:
    Use the setup program to install ERUNT on your computer
  • For the zipped version:
    Unzip all the files into a folder of your choice.
Click Erunt.exe to backup your registry to the folder of your choice.

Note: to restore your registry, go to the folder and start ERUNT.exe

*If you do not have this disc you will need to locate a directory on your system which is named i386. You will need to search for this in the registry, to do this type in regedit in the Search programs and files box and then press Enter, you will see a screen similar to the one below.

registrysnip_zps5dd5b3c6.png

To find this you will need to navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup

You will see the list of HKEY options, please notice the arrow to the left of the option, when you click on this arrow the menu will expand and you will be able to find the next step “SOFTWARE”, expand the menu on this option and proceed till you reach “Setup”.  Under “Setup” you will need to find “SourcePath”.  The SourcePath probably has an entry pointing to your CD-ROM drive, and that is why it is asking for the XP CD. This needs to be changed it to C:\, to do this double click on SourcePath, a box will open where you will make this change by typing in C:\.

Restart your computer now and try running the scan again.


Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.

 

 

 

 


#4 AdrianHenry

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Posted 30 April 2013 - 05:26 AM

 Virus is the most common reason that cause the speed of the system. Computer slow due to more reason also: 
 Viruses and Spyware
 Hard Drive Fragmentation

 Hardware Conflict
 Too Many Start Up Programs
 Outdated Computer

To cure these problems delete unwanted programs. Scan your computer, which is the most important. defrag your computer or you can also analyze your drives.



#5 Dave Clark

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Posted 30 April 2013 - 12:42 PM

Hi,
Many thanks for your replies. I have ran Scannow as per instructions and also went to MS update which said there were no updates required. My computer is still taking over 7 mins to load from the Windows Logo screen and bearing in mind that it is only loading windows and my Avira free A/V. I also tried the chkdsk /r but after 2hrs it had only done 6% of my HDD, so by my reckoning it will take about 35 Hrs to complete! So I stopped it. My HDD is a 1Tb. but only about 30% full. It's not just the loading time either because occasionally I get the swinging torch when I click My Computer. The computer is just so sluggish at times, when loading programs etc. I have Perfect disk Proffessional on my machine which keeps my disks defragmented. So I'm at a loss as to what else could be wrong. The computer does not act as it used to.

Regards,

Dave

#6 dc3

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Posted 01 May 2013 - 08:04 AM

Please use the following link to provide us with information about your computer so that we can assist you.

How to Publish a Snapshot using Speccy
 

Please download MiniToolBox  , save it to your desktop and run it.

 Checkmark the following checkboxes:

  List last 10 Event Viewer log
  List Installed Programs
  List Users, Partitions and Memory size.


 Click on Go to start the scan.  Once it is finished highlight the text, copy it and paste it in your next post.


Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.

 

 

 

 


#7 jacksons84

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Posted 02 May 2013 - 02:07 AM

Nice Update for remove the Virus from computer.



#8 hamluis

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Posted 02 May 2013 - 05:41 AM

Nice Update for remove the Virus from computer.

 

Not sure what you mean...if OP has a malware problem, then this topic should be moved to Am I Infected forum.  Many self-removal efforts by members do not do the job.

 

The OP should follow dc3's lead in trying to determine what the problem is, IMO.

 

Louis



#9 dc3

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Posted 02 May 2013 - 08:37 AM

Hi,
Had my computer cleaned of Virus by Mole over on the Spyware removal Forum and he suggested that I post in this forum to see if you can pinpoint the reason for my very slow and at time unpredictable computer. The original post I made is here :- http://www.bleepingcomputer.com/forums/t/492388/badly-infected/

 

 

For those suggesting that this may be virus related, you should read the first post in this topic.  Dave informed us that he had a topic in the Virus, Trojan, Spyware, and Malware  Removal Logs forum where mOle, who is a Malware Response Instructor, successfully cleaned the computer in question of infection.


Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.

 

 

 

 





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