Please be informed that we have recently released a brand new AVG 2011 and installation files for AVG 8.5 are no longer available.

Please follow FAQ 3250 to download and install AVG 2011 or FAQ 3258 to install AVG 2011 over AVG 8.5.

Note: Let us inform you that AVG 2011 does not support installation on Microsoft Windows 2000. For more information click here. In case you are using Windows 2000, please download and install or upgrade to AVG 9.

This is a list of applications that are known to be in conflict with one or more components in AVG 8.5:

Venturi Client
Issue:
Crash of avgnsx.exe related to vlsp.dll.
Solution:
The problem occured when the older version of Venturi Client (3.3, 4.1) is installed. If you have the mentioned problem, please ask the developer of this application for newer version of Venturi client. The new version does not use the vlsp.dll library and the application does not cause problems with AVG.

ThreatFire AntiVirus
Problem:
Computer freezes or crashes repeatedly.
Solution:
The problem occured after a recent update of the ThreatFire AntiVirus. Possible solution is available in the manufacturers knowledge base, search for 'AVG'. In case the provided solution does not resolve the issue, it may be necessary to uninstall the program.

Webroot Spysweeper
Issue:
Tracking Cookies are not correctly removed. Sending and/or receiving e-mails is not possible.
Solution:
Unfortunately, AVG 8.5 is not able to work with this application. Therefore it is necessary to uninstall Webroot Spysweeper application. In case there is issue only with sending or receiving of e-mails, it is sufficient to disable the e-mail scanner function in Webroot Spysweeper:
Start Webroot Spy Sweeper -> select "Shields" button -> select "Email attachments" tab -> uncheck "E-Mail Attachments" option.

Agnitum Outpost Pro firewall
Issue:
BSOD (blue screen of death) during the AVG 8.5 installation.
Solution:
With new version of Agnitum Outpost Pro firewall 2008 this issue is solved. So please update your version of Agnitum Outpost Pro firewall to this new version.

ICQ toolbar
Issue:
Internet Explorer 7 does not work when ICQ Toolbar and AVG Toolbar are installed together.
Solution:
Unfortunately, the AVG Toolbar is not able to work with ICQ Toolbar in Internet Explorer 7. Therefore it is necessary to uninstall ICQ Toolbar application.

Session Manager 0.6.1.13 add-on
Issue:
Error message displayed during closing of Mozilla Firefox browser.
Solution:
Unfortunately, AVG Toolbar is not able to work with Session Manager 0.6.1.13 add-on. Therefore it is necessary to uninstall this add-on application.

Content Watch (Vista OS)
Issue:
Blocking of internet connection, crashes of avgnsx.exe process.
Solution:
Unfortunately, the AVG WebShield is not able to work with this application. Therefore it is necessary to uninstall Content Watch application or install AVG without WebShield component.

SlipStream Internet Accelerator
OnSpeed
Dodo Speed Accelerator
Issue:
AVG WebShield component is not able to initialize itself.
Solution:
Please see FAQ 1442 for a possible solution. If the problem persists, please contact the vendor of the application. This issue is caused by a common part of these applications which is in conflict with AVG Online Shield.

Google Desktop Search
Issue:
AVG WebShield component is not able to initialize itself.
Solution:
Please see FAQ 1442 for a possible solution. If the problem persists, please contact the vendor of the application. This issue is caused by a conflict between this application and AVG Online Shield.

StumbleUpon Toolbar
Issue:
Slow start of Internet Explorer and slow opening of websites when AVG Toolbar is also installed.
Solution:
Please uninstall StumbleUpon Toolbar or AVG Toolbar to ensure correct function of Internet Explorer.

NetNanny Content Watch
Issue:
Connection to Internet is blocked or very slow when AVG WebShield is installed. A crash of AVG may occur.
Solution:
It is not possible to run AVG with Online Shield, and NetNanny at the same time. The NetNanny software is injecting AVG files, which causes the crashes.

System Protect
Issue:
AVG Tray icon is not shown, and AVG Tray cannot be run from Start menu.
Solution:
This program does prevent some AVG actions and does not allow the user to create an exception. It is therefore recommended to uninstall System Protect to ensure full AVG functionality.

Safe Eyes Content Filter
Issue:
AVG Online Shield is repeatedly crashing when this software is installed.
Solution:
Since one part of Safe Eyes is being injected into Online Shield component, and then causes the crash, the only solution is to uninstall the Safe Eyes application.

Dell Network Assistant
Issue:
Computer crashes repeatedly (BSOD).
Solution:
The problem occurs only with an obsolete version of the application. Possible solution to update the application to the latest version, which can be downloaded here. In case the provided solution does not resolve the issue, it may be necessary to uninstall the program.

Contafiscal 2000 (in spanish)
Issue:
The "contab.exe" process uses up to 100% CPU when AVG is installed.
Solution:
Unfortunately, AVG 8.5 is not able to work with this application. Therefore it is necessary to uninstall the Contafiscal 2000 application.

CA Anti-Spyware 2009 LE (Formerly CA eTrust® PestPatrol Anti-Spyware)
Issue:
AVG scans (e.g. Whole computer scan, Shell Extension scan) cannot be launched when this software is installed.
Solution:
To ensure correct function of your AVG program please uninstall the CA Anti-Spyware 2009 application.

BlueCoat K9 Web Protection
Issue:
AVG Firewall notifies about the corrupted configuration and/or Internet connection is not working when AVG Firewall is active.
Solution:
This issue occurs when both applications are running simultaneously. To ensure correct function of your AVG Firewall please uninstall the BlueCoat K9 Web Protection.

Logitech QuickCam drivers
Issue:
AVG Tray is crashing when Logitech QuickCam drivers are installed.
Solution:
The Logitech QuickCam software is modifying AVG files, which is causing the crash. This issue is described in Logitech help section. To prevent the crashes, please uninstall the Logitech QuickCam software, or update it to the latest version.

PC MACLAN
Issue:
BSOD crash when browsing shared MAC folders using PC MACLAN software, caused by one of MACLAN components which is not compatible with AVG Resident Shield driver.
Solution:
To eliminate the issue, it is necessary to uninstall the PC MACLAN application.

AVG installation package is able to detect conflicting anti-virus products that may interfere with correct function of some of the AVG components. If such program is detected, it is necessary to uninstall it before installing AVG. In general, such programs can be uninstalled using the standard Windows option Add or Remove Programs. To uninstall the conflicting application, please proceed as follows:

• Open menu Start -> (Settings) -> Control Panel.
• Double-click on Add or Remove Programs.
• Click on the program you want to uninstall in the list of installed programs and select Remove.
• After uninstallation of the program please restart your computer and run the installation of AVG.

In case you encounter any issues with uninstallation of the conflicting program, we recommend to use a dedicated removal utility or instructions designed specifically for each program:

• Avast uninstall utility
• BitDefender uninstall instructions
• BullGuard uninstall instructions
• CA Anti-Virus uninstall utility
• Eset uninstall utility
• F-Secure uninstall utility
• G Data AntiVirus uninstall utility
• Kaspersky uninstall instructions
• McAfee uninstall utility
• Symantec uninstall utility
• Panda uninstall utility
• TrendMicro uninstall instructions

After using the uninstall utility or after following the instructions, please restart your computer and run AVG installation.

Note: In case of any issues with uninstallation of conflicting products, please contact the technical support of its vendor.