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Running Avast for 1st time


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#1 Steve951

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Posted 28 June 2010 - 10:44 AM

I am new to this site, what a wealth of info.

I have a older Toshiba laptop Intel Pent M 1.2 GHZ w/ 512 ram. My CPU has been real slow and has had issues w/ other searches popping up, misdirected searches, and sometimes will not power down w/o holding the pwr button for 5 sec.

It had the AV security suite virus that was removed but it still seems slow. I have been reading up on this forum and under reccommendations have installed Avast. It was taking a long time to install, I thought was my Hughesnet over usage, until today. It again would not turn off, When I brought it to the office, it would not open wirless network connections then it bogged down and was unresponsive. I pwred off and retarted.

I started the AVAST complete scan which seemed slow, which started around 13mb/sec and has been slowing down. Currently it is 37% at an hour. I don't have alot of files on the CPU. Probably alot of Junk that needs to be removed. I tried to open the C drive to post the amt of memory used, but it just hanggs there half open. Idle process is around 75%.

I am hopeing it will pick something up, Curious to what your thoughts are.

EDIT : Finally got through it, No errors. I am going through the steps for a slow cpu in Safe mode w/ no problems, I need to run the Scan disk back w/ normal startup. Will see if I still have lockin errors.



Thanks
Steve

Edited by Steve951, 28 June 2010 - 12:43 PM.


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#2 quietman7

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Posted 28 June 2010 - 01:02 PM

The speed and ability to complete an anti-virus or anti-malware scan depends on a variety of factors.
  • The program itself and how its scanning engine is designed to scan: using a signature database vs heuristic scanning or a combination of both.
  • Options to scan for spyware, adware, riskware and potentially unwanted programs (PUPS).
  • Options to scan memory, boot sectors, registry and alternate data streams (ADS).
  • Type of scan performed: Deep, Quick or Custom scanning.
  • What action has to be performed when malware is detected.
  • A computer's hard drive size.
  • Disk used capacity (number of files to include temporary files) that have to be scanned.
  • Types of files (.exe, .dll, .sys, .cab, archived, compressed, packed, email, etc) that are scanned.
  • Whether external drives are included in the scan.
  • Competition for and utilization of system resources by the scanner.
  • Other running processes and programs in the background.
  • Interference from malware.
  • Interference from the user.
To speed up your scans, uninstall unnecessary programs, clean out the temporary files or use ATF Cleaner first, temporarily disable any other real-time protection tools, close all open programs and do not use the computer during the scan. If the scan still seems slow or hangs, then try performing the scan in "safe mode".

Using two security scanning engines at the same time can cause each to interfere with the other, cause systems hangs, false detections, unreliable results and other unpredictable behavior.

Note: It is not unusual for an anti-virus or anti-malware scanner to be suspicious of some compressed, archived, .cab and packed files because they have difficulty reading what is inside them. These kind of files often trigger alerts by security software using heuristic detection because they are resistant to scanning (difficult to read). This resistance may also result in some scanners to stall (hang) on these particular types of files. Certain files in the System Volume Information Folder like the Tracking.log (created by the Distributed Link Tracking Service to store maintenance information) have also been reported as a source causing some scanners to hang.
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#3 Steve951

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Posted 28 June 2010 - 08:36 PM

Thanks for the advice.

I had deleted alot of unused programs and used the windows sisk cleanup prgm. I think there is some malicious program in there. I tried to run Rkill, but it starts then opens a window, stating I must choose what to run the program with.
I need to mention, these were on the CPU when AV security suite was removed. I am unable to get Network connection to enable a wireless network at my office. It did work last week. though.

Not sure what to do next.

Steve

Edited by Steve951, 28 June 2010 - 08:56 PM.


#4 Junior2007

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Posted 28 June 2010 - 09:13 PM

Question regarding this same topic, so not starting another thread. Just went back to Avast after using Microsoft Security Essentials for some time, and it worked great but felt a need to go back to Avast. Anyhow, after installation it seems Windows Defender is now back up and running, as MSE disabled it when that was my AV. Do I need to disable Windows Defender again, or will it run along with Avast without any issues?

#5 quietman7

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Posted 29 June 2010 - 06:39 AM

Yes, Microsoft Security Essentials will disable Windows Defender if installed.

How to Disable Windows Defender

The version of Windows Defender included with all versions of Windows 7 and Vista is part of the operating system so it cannot be uninstalled. However, you can disable or turn it off.As a general rule, using more than one anti-spyware program like Malwarebytes' Anti-Malware, SuperAntispyware, Spybot S&D, Ad-Aware, etc will not conflict with each other or your anti-virus if using only one of them for real time protection and others as stand-alone scanners. In fact, doing so increases your protection coverage without causing the same kind of conflicts or affecting the stability of your system that can occur when using more than one anti-virus. The overlap of protection from using different signature databases will aid in detection and removal of more threats when scanning your system for malware. However, if using all their real-time resident shields (TeaTimer, Ad-Watch, MBAM Protection Module, Spyware Terminator Shields, etc) together at the same time, there can be conflicts when each application tries to compete for resources and exclusive rights to perform an action. Additionally, competing tools may even provide redundant alerts which can be annoying and/or confusing.

If you are unable to run any .exe applications, the first thing to try is to check your file association for .exe files.
  • Go to Control Panel and select Folder Options.
  • Select the File Type tab and click the New button.
  • In File Extension, type: EXE
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  • Click the Advanced button, then from the list select "Application."
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  • Click OK.
  • The EXE extension is automatically selected.
  • Click Restore and close the dialog box.
If you are still unable to run any .exe applications, .com files, please refer to these suggestions:
  • EXE File Association Fix by Doug Knox (xp_exe_fix.zip).
    • Extract (unzip) the file to your Desktop.
    • Double-click on xp_exe_fix.reg and choose "Yes" to merge it into the registry when prompted.
    • Restart the computer and check if you can run an .exe program.
  • Easy File Associations by Doug Knox (fileassoc.txt) to re-associate individual file associations to Windows XP defaults.
    • There is also a link to download a .bat file (xp_fileassoc.zip) which will restore all of the "default" associations in XP.
    • Extract (unzip) it to your Desktop.
    • Double-click on xp_fileassoc.bat and choose "Yes" to merge it into the registry when prompted.
    • Restart the computer and check if you can run an .exe program.
Other Options:CAUTION: Some of these steps involve making changes in the registry. Always back up your registry before making any changes. If you are not familiar with working in the registry, then you should NOT attempt to make any changes on your own. ERUNT is an excellent free tool that allows you to to take a snapshot (backup) of your registry before making changes and restore it when needed.
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