Starting from mid October all AVG Anti-Virus, AVG Anti-Virus & Firewall and AVG Internet Security customers will start to be invited to upgrade their 8.5 product to the new 9.0 version. The invitations are being rolled out gradually across the AVG network, so don't worry if you don't see your notification right away. The upgrade is 100% free to all users of AVG commercial home user software with current licenses.

Alternatively, from this date you will also have a new button being shown on your AVG main application window ‘Click here to easily upgrade to the new enhanced AVG version’ that will enable you to upgrade to the new edition 9.0. As per screen below, you simply need to select the button on the left hand side of the application to start upgrading.

Note: This topic is also covered by a video tutorial.

To install AVG on your computer, please proceed as follows:

1. Go to the webpage of your AVG edition for the latest installation file:
   AVG Anti-Virus
   AVG Anti-Virus plus Firewall
   AVG Internet Security
2. Click the AVG for Windowslink:
   • If unsure which file is suitable for your system, get the AVG Download Manager file
   • If you wish to use the file for installation on a computer without Internet connection, use the 32bit or 64bit installer file (if unsure, choose 32bit)
3. When prompted, do not open the file directly from the Internet, but save it to the Desktop.
4. Restart your computer.
5. Close all running applications, and then double-click the downloaded AVG installation file on the Desktop. It has a four color square icon and its name starts with AVG_...
6. Follow the installation wizard.
   Note: For detailed information about the installation process, please see our AVG Installation Guide.
7. When prompted, use the copy&paste method to enter your license number into the installation form.
8. Please restart you computer if prompted to do so.

If you experience any issues during the installation, AVG Customer Services will need the installation log files in order to analyze the situation. To send us these files, please take the following steps:

1. On the taskbar, click Start.
2. Click Run (or the Start Search field).
3. Type %tmp% and then press ENTER.
4. Locate the following files in the new window:
   avg9inst_XXXX-XX-XX_XX-XX.xml
   Davg9inst_XXXX-XX-XX_XX-XX.log
   (X represents the date and time the file was created)
5. Send these files to AVG Customer Services.

This is a list of applications that are known to be in conflict with one or more components in AVG 9.0:

Ashampoo Firewall FREE
Issue: It is not possible to update AVG even if all AVG processes are allowed in the firewall, error message "The connection with the update server failed" is displayed.
Solution: Uninstalling Ashampoo Firewall FREE is the only solution. Workarounds as editing AVG services properties are not safe and present a security breach (any intruder can take control of the service then or attack it from the interactive desktop).

Better File Rename
Issue: Older version of this application causes crash of Windows Explorer with active AVG 9.0 Shell Extension Test option, when user uses right-click.
Solution: Update the application from developers website.

BlueCoat K9 Web Protection
Issue: Internet connection might be blocked completely or partially. AVG Firewall might be blocking some of BlueCoat K9 features.
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.

Eset Smart Security 4
Issue: Computer is slowed down or crashes repeatedly.
Solution: It is generally not recommended to use more security solutions on one system. They will compete for resources which may result in slowdown, crashes or in no protection at all. We recommend uninstalling Eset Smart Security 4 (see FAQ 2277 for remover application).

Microsoft Security Essentials
Issue: Computer is slowed down or crashes repeatedly.
Solution: It is generally not recommended to use more security solutions on one system. They will compete for resources which may result in slowdown, crashes or in no protection at all. We recommend uninstalling Microsoft Security Essentials.

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.

System Protect
Issue: AVG cannot be installed or is installed incorrectly
Solution: During the installation of AVG, turn off the System Protect. You may also need to create an exception for AVG later.

PC Tools Antivirus
Issue: Compatibility issues
Solution: PC Tools Antivirus is detected as a conflicting application during the AVG installation. It is recommended to uninstall it.

Lock Folder XP
Issue: The computer crashes repeatedly.
Solution: We recommend to uninstall this application to solve this issue.

Sunbelt Personal Firewall
Issue: Sunbelt Personal Firewall may cause AVG update process to monopolize the CPU time.
Solution: Sunbelt Personal Firewall is detected as a conflicting application during the AVG installation. We recommend uninstalling this application.

Malwarebytes' Anti-Malware
Issue: Full version of Malwarebytes' Anti-Malware contains resident part which causes operating system to freeze with active AVG Resident Shield.
Solution: This issue occurs when both components are running simultaneously. Please uninstall Malwarebytes' Anti-Malware or disable its resident part.

If you are installing AVG and the installation process fails, there are several steps you can take to install AVG successfully.

1. Make sure you are installing AVG under an account with Administrative rights
This step is vital for correct and successful installation, since AVG needs to copy some of its files into folders, which are not accessible by an account with User permissions. For information on how to check whether you are logged into Windows as a user with administrative rights, please check one of these FAQ topics (depending on your operating system):

• Windows 2000
• Windows XP
• Windows Vista
• Windows 7

2. Always use the latest AVG installation file
AVG program is being improved continuously, including the installer which is responsible for correct installation process. Moreover, using the latest installation package eliminates the need to download larger program and virus base updates immediately after installation. To download the up-to-date installation AVG 9.0 file, please visit the Download section of our website, choose your product and click the link "AVG for Windows".

3. Close all running programs, disable security applications
Before running the installation file, please close all unnecessary running programs and make sure that there is no security application which might interfere with the installation process. Typical examples of programs preventing successful AVG installation are anti-spyware utilities and registry monitors/cleaners, which are preventing access to Windows registry. AVG needs to be installed also into registry to allow the functionality and protection it was designed to offer.

4. Remove possible conflicting applications
If you are using an application which might be in conflict with AVG, please disable it or uninstall it completely before running the installation. In general, AVG may conflict with such application, that provides similar or same functionality as one of the AVG components. This is especially important for other programs with one or more of these features:

• real-time protection against viruses (same as AVG Resident Shield)
• monitoring or control of network traffic (same or similar to AVG Firewall)
• checking or filtering of e-mails (same or similar to AVG E-mail Scanner)
• checking of websites, web content filters (same or similar to AVG Online Shield)

5. Disable UAC (Windows Vista and Windows 7 only)
On Windows Vista and Windows 7, the function User Account Control may in some cases create a copy of specific AVG files in a virtual folder. This limits AVG functionality after the installation. The UAC function can be disabled in Windows Control Panel -> User accounts -> Turn User Account Control on or off -> uncheck "Use User Account Control (UAC) to help protect your computer" -> click OK button and restart the computer.

In case the installation is still unsuccessful after these steps were taken, please do not hesitate to contact our Technical Support using the web form. To provide us with the most complete information and thus help us provide you with a solution in the shortest possible time, please attach the AVG installation log files to your request:

• open Start -> Run or Search -> type "%tmp%" -> OK
• Please find the following files in the Explorer's window that will appear on the screen:
  • avg9inst_XXXX-XX-XX_XX-XX.xml
  • Davg9inst_XXXX-XX-XX_XX-XX.log
    (where X represent the date and time of creation)
• Attach the files to your request

The AVG 2011 installation package is able to detect conflicting anti-virus products that may prevent some AVG components from functioning correctly. If a conflicting program is detected, it must be uninstalled before installing AVG. Generally, programs can be uninstalled using the standard Windows Add or Remove Programs option. To uninstall the conflicting program, please proceed as follows:

If you encounter any issues uninstalling a conflicting program, we recommend using a dedicated removal utility or instructions designed specifically for each program:

• Avast uninstall utility
• Avira AntiVir RegistryCleaner
• 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 uninstallation utility or following the removal instructions, restart your computer and run the AVG installation.

Note: If you experience any issues uninstalling a conflicting product, please contact the technical support of the program's vendor.

To install AVG on your computer, please follow the steps described in FAQ 1995.

If it is not possible to install AVG this way due to an infection, please install AVG in Safe Mode as described in FAQ 2863.

Note: This topic is also covered by a video tutorial.

To upgrade to AVG 9.0 from the previously installed AVG 8.x, please proceed as follows:

Note: All settings from the previous version will be converted to AVG 9.0. The previous version will be automatically removed.

1. Go to the webpage of your AVG edition for the latest AVG 9.0 installation file:
   AVG Internet Security 9.0
   AVG Anti-Virus 9.0
   AVG Anti-Virus plus Firewall 9.0
2. Click the AVG for Windowslink:
   • If unsure which file is suitable for your system, get the AVG Download Manager file
   • If you wish to use the file for installation on a computer without Internet connection, use the 32bit or 64bit installer file (if unsure, choose 32bit)
3. When prompted, do not open the file directly from the Internet, but save it to the Desktop.
4. Restart your computer.
5. Close all running applications, and then double-click the downloaded AVG installation file. It has a four color square icon and its name starts with AVG_...
6. Follow the installation wizard to install the new AVG 9.0. The previous AVG 8.x version will be automatically removed during the installation process.
7. When prompted, use the copy&paste method to enter your license number into the installation form. For a description of this method, please see FAQ 2010.
8. Complete the installation wizard, and then restart your computer.
9. Update the AVG program. For detailed instructions on updating AVG, please see FAQ 2220.

If you experience any issues with the installation, AVG Customer Services will need the installation log files to find out why AVG cannot be correctly installed on your computer.

To send us these files:

1. On the taskbar, click Start.
2. Click Run (or the Start Search field).
3. Type %tmp% and then press ENTER.
4. Locate the following files in the new window:
   • avg9inst_XXXX-XX-XX_XX-XX.xml
   • Davg9inst_XXXX-XX-XX_XX-XX.log
     (X represents the date and time the file was created)
5. Send these files to AVG Customer Services.

To install AVG 9.0 Free over the installed AVG 8.x Free please proceed as follows:

Note: All settings from old version will be converted into AVG 9.0. Old version will be automatically removed

1. Download the latest AVG 9.0 Free installation file here:

• AVG Anti-Virus Free Edition 9.0

• Click on Download button (see cnet).
• When you are prompted, please do not open this file directly from the Internet, but click the Save button and choose a location, where the installation file should be stored (we recommend saving the file to the Desktop).

2. Reboot your computer.

3. Close all running applications, locate the downloaded AVG Free installation file (it has a four color square icon and its name starts with AVG_...) and launch it.

• Follow the installation wizard to install the new AVG 9.0 Free (previous versions of AVG 8.x Free will be automatically removed during the installation process).
• Finish the installation wizard and restart your computer.

4. Update the AVG free program (for detailed instructions please visit FAQ 1303). 

To install AVG 9.0 over the installed AVG 8.x Free please proceed as follows:

Note: All settings from old version will be converted into AVG 9.0. Old version will be automatically removed

1. Download the latest AVG 9.0 installation file here (choose your edition):

• AVG Internet Security 9.0
• AVG Anti-Virus 9.0
• AVG Anti-Virus plus Firewall 9.0

• Right-click the AVG for Windows link, and then click Save (Link/Target) As:
  • If unsure which file is suitable for your system, get the AVG Download Manager file
  • If you wish to use the file for installation on a computer without Internet connection, use the 32bit or 64bit installer file (if unsure, choose 32bit)
• When you are prompted, please do not open this file directly from the Internet, but click the Save button and choose a location, where the installation file should be stored (we recommend saving the file to the Desktop).

2. Reboot your computer.

3. Close all running applications, locate the downloaded AVG installation file (it has a four color square icon and its name starts with AVG_...) and launch it.

• Follow the installation wizard to install the new AVG 9.0 (previous versions of AVG 8.x Free will be automatically removed during the installation process).
• Enter your license number when you are asked (we recommend that you use Copy&Paste method to enter this license number into the installation form, as described in FAQ 2010).
• Finish the installation wizard and restart your computer.

4. Update the AVG program (for detailed instructions please visit FAQ 2220).

Note: This topic is also covered by a videotutorial.

To install AVG from the Backup Disc, please proceed as follows:

• Insert the Disc into your computer, its content should start automatically. In case this does not happen, please open My Computer - DVD drive, and run the file index.html.
• On the opened page please select Install full version and click on Continue button.
• Select Run to start the installation.
• Follow the installation wizard.
• When prompted, please enter your full license number (we recommend to use the copy/paste method).
• If the setup requires restart, please restart the computer to finish the installation.

In case there will be any problems with any part of this procedure, please describe them in as much detail as possible and inform us about them. Please send us also the AVG installation log files. They will help find cause of this issue. To contact us, please proceed as follows:

• Click on Start.
• Select the Run option.
• Type %tmp% and press the OK button.
• Please find the following files in the Explorer's window that will appear on the screen: 
  • avg9inst_XXXX-XX-XX_XX-XX.xml
  • Davg9inst_XXXX-XX-XX_XX-XX.log
    (where X represent the date and time of creation)
• Please attach all three files to you request.
• Send all files to AVG Customer Services.

To resolve this issue please follow these steps:

1. Try to remove the content of Temporary Internet Files:

• Open Internet Explorer ->Tools menu -> Internet Options -> Temporary Internet Files section -> Delete Files button -> Delete All Offline Content.
• Then please reboot your computer and download the latest AVG installation file of the product that you have purchased. AVG installacion files are available here.

2. In case you are using some security application for web content filtering (CyberSitter, Content Watch ...) please make sure the following AVG websites is set as a trusted one (so files coming from it are not filtered / modified) or try to temporarily turn the content filtering application off.

• [www.avg.com]
• [akamai.avg.cz]
• [update.avg.cz]
• [download.avg.com]

3. If the problem still persists, it might be caused by unstable Internet connection. We would like to recommend you to use AVG download manager application to download the AVG installation file. See FAQ 2233 for more information.

You can download the AVG Download Manager this way:

• In the Download section choose your product.
• Switch to the Installation files tab.
• Click on the link labeled as AVG Download Manager.
• After downloaded, please start it and follow the wizard.

In case of any other questions, please feel free to contact AVG Customer Services, for help and closer information about applications above please contact application vendor.

Note: This topic is also covered by videotutorials - download and installation.

Once you have purchased an AVG product, you need to install the AVG program onto your computer. The installation consists of several steps, their description can be found below.

1. Downloading the AVG installation file
It is recommended to always use the latest AVG installation file when installing AVG. Using an old installation file may lead to downloading large update files immediately after installation. The latest installation package also contains fixes to the most recently discovered issues, minimizing the chance of encountering an AVG malfunction in the future.

In case you have an AVG Backup Disc and do not want to install AVG from the Internet, please visit FAQ 1994.

• AVG installation files can be downloaded from our website.
• From the list please select the product that you have purchased.
• Click on AVG 9.0 for Windows to start the download.
• When you are prompted, please do not open this file directly from the Internet, but click the Save button and choose a location where the installation file should be stored. We recommend saving the file to the Desktop.

In case you encounter any problem while downloading the file, please refer to FAQ 1993 for more information.

2. Installing the AVG program

Once the installation file is downloaded, run it by double-click on the file. Please note that it may take several seconds before the installation begins.

Note: For detailed information about installation process, see the AVG Installation Guide.

• Choose the language of the installation wizard.
• Confirm the license agreement to continue with installation (or decline it to end the installation).
• Choose the type of installation (use the default selection if you are not sure what to choose).
• Fill in your license number that was provided to you upon purchase or registration. To fill in the number, please use the copy/paste method.
• Choose whether you wish to install and use the AVG Toolbar. For more information about this part of AVG, please visit the AVG Security Toolbar site or refer to FAQ topic 2113.
• Finish the installation.

In case you experience any issues during the installation, please visit FAQ 2148, which describes the basic installation troubleshooting.

3. First Run Wizard

The AVG First Run Wizard will be started immediately after the copying of files is finished. It will update AVG and create an initial configuration allowing you to set the time of update and test schedules. In case you decide to change any of the settings you chose during the First Run Wizard, you can do so easily in the AVG program.

Please note that the First Run Wizard has to be completed, in order to ensure correct function of AVG.

4. Firewall Configuration Wizard

If your AVG edition contain the Firewall component, you will be presented with the Firewall Configuration Wizard as part of the First Run Wizard. This wizard allows you to create an initial Firewall configuration. Please select the description that best fits your computer. More information regarding the firewall configuration can be found in the FAQ topic 2082.

5. Optimization scan

After the installation is finished, dialog will be displayed asking if you want to run Optimization scan. This scan will find trusted files on computer and allows faster scanning in future. You can run it imediatelly or as a part of first scheduled scan.

Note: This topic is also covered by a videotutorial.

To add or remove AVG components please proceed as follows:

• Please download the latest installation file of AVG from the Download section.
• When you are prompted, please do not open this file directly from the Internet, but click Save button and choose location where installation file should be stored. We recommend saving the file to the Desktop. 
• Reboot your computer. 
• Locate the downloaded AVG installation file (it has a four color square icon and its name starts with AVG...) and launch the installation by double-clicking on it.
• The installation process recognizes the existence of installed AVG and the Add/Remove Components option is offered.

Note: Reinstalling and using the Add/Remove Components option is necessary for example in case that there is a new supported e-mail client (Outlook/The Bat!) installed on the PC after the first installation of AVG.

AVG installation wizard is able to detect incompatible or conflicting application before installing AVG. However some applications might be detected even after their uninstallation.

This is usually caused by unremoved record in Windows Repository.

Use AVG utility to fix the record:

• Download the AVG Service Utility
  • For Windows XP/2000:
    http://www.avg.com/filedir/util/support/delrepxp_en.exe
  • For Windows Vista/7:
    http://www.avg.com/filedir/util/support/delrepwv_en.exe
• Run the utitlity and follow the instructions that will be displayed.
• After finished, please restart the computer and run the AVG installation again.

If you have obtained a license for one of the AVG 9.0 products and there is AVG Free installed on your computer at the moment, please proceed as follows to install your new AVG edition in place of AVG Free. The same steps are valid also for installation of AVG Trial version instead of AVG Free:

1. Download the latest AVG 9.0 installation file.

• The latest AVG 9.0 installation files are available here.
• Select the product that you have purchased.
• Click the AVG for Windowslink:
  • If unsure which file is suitable for your system, get the AVG Download Manager file
  • If you wish to use the file for installation on a computer without Internet connection, use the 32bit or 64bit installer file (if unsure, choose 32bit)
• When you are prompted, please do not open this file directly from the Internet, but click the Save button and choose a location, where the installation file should be stored (we recommend saving the file to the Desktop).

2. Close all running applications and uninstall the AVG Free:

• Double-click the downloaded installation package.
• In the third step of the installation process, please select the option Uninstall product.
• Finish the uninstallation.

3. Restart your computer.

4. Run the installation file again and install the new AVG 9.0 version:

• Follow the installation wizard to install the new AVG 9.0.
• Enter your license number when you are asked (we recommend using Copy/Paste when filling in the license number, as described in FAQ 2010).
• Finish the installation and restart your computer if needed.

The AVG installation process detects conflicting applications present on your computer. One of the applications that can affect the functionality of the AVG program is Roxio Easy CD & DVD Creator. If an older version of this program is installed on your computer, the AVG installation process may display the following message:

Installer has detected that there is an outdated version of the program Roxio Easy CD & DVD Creator, which contains a bug that (among others) can cause problems with AVG 9.0.

To solve this issue, we recommend that you visit this Roxio webpage, which contains the latest update for the product. After updating, please run the AVG installation again; it should proceed correctly without the abovementioned warning. If you do not use Roxio Easy CD & DVD Creator, you can uninstall it to make sure that the AVG installation will finish correctly.

If you have any issues updating or uninstalling your Roxio software or the related cdr4_2K.sys driver, please contact Roxio Technical Support.

Please note: The driver Cdr4_2k.sys, which is detected by AVG setup, was also distributed by Microsoft in Windows Media Player. If you do not have the Roxio software installed, we recommend that you download and install all available updates for Windows Media Player from the following website:
http://www.windowsupdate.com

It is possible to continue with the AVG installation even if you are not able to update or uninstall the mentioned Roxio driver. However, we strongly recommend that you either perform the suggested Roxio update or uninstall the program.

It is possible that you may encounter the following error(s) when installing AVG 9.0:

Error: MSVC Redistributables installation failed. Installation of AVG can not continue.
Error: MSVC Redistributables installer requires immediate restart. Installation of AVG can not continue.

This issue is related to the installation of Microsoft Visual C++ libraries on your Windows operating system.

To solve the issue, please restart your computer and relaunch the AVG installation process. After your computer restarts, the installation should proceed properly.

If the installation fails again with the same error message, please do as follows:

If the solutions above did not work for you or AVG does not work correctly after installation, please contact AVG Customer Services by following the instructions in FAQ 2216.

Error 0x80070005 during the AVG installation is caused by the insufficient access rights to the AVG related files or registry entries. The error message looks like this:

Details:

Local machine: installation failed
Installation:
Error: Action failed for registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows: creating registry key....
Access is denied.

To rectify the issue, please follow the steps below:

1. Download the latest AVG installation file. The latest AVG instalation files are available here.

• Select the product that you have purchased.
• Click on the Download AVG now (paid version) button.
• When prompted, please do not open the file directly from the Internet, but click the Save button and choose location where the installation file should be stored. We recommend saving the file to the Desktop.

2. Download the Reset Access utility from our website. It is recommended to save the file to the Desktop.

• Once the file is downloaded, run it. Detailed information on how to use the utility will be displayed on your screen once you run the file.
• After using the utility according to the instructions, please restart the computer. The issue will be resolved.

3. Locate the downloaded AVG installation file (it has a four color square icon and its name starts with AVG...) and launch the installation by double-clicking on it.

• Follow the installation wizard.
• Enter your AVG License Number when asked (we recommend that you use copy paste method to enter the AVG License Number into the installation form).
• If AVG requests a computer restart, please do so.

If there is any other issue when installing AVG, the AVG Technical Support team requires the AVG installation log file and permavg.7z archive to analyze why AVG cannot be correctly installed on the computer. To send us these files, please do the following:

AVG installation log file:

• Click Start ->; Run... -> type %tmp% -> press OK button.
• Please find the following files in the Explorer's window that will appear on the screen:
  • avg9inst_XXXX-XX-XX_XX-XX.xml
  • Davg9inst_XXXX-XX-XX_XX-XX.log
    (where X represent the date and time of creation)

Permavg.7z (output of Reset Access utility):

• The file will be created in the same folder where the reset_access.bat file is stored.
• Kindly send permavg.log if the permavg.7z is missing.

Please send both files to AVG Customer Services.

If you are using AVG LinkScanner as a protection against malicious websites and would like to use the AVG Anti-Virus, Anti-Virus plus Firewall, or AVG Internet Security (all of which also contain the LinkScanner protection), it is necessary to uninstall the AVG LinkScanner first to allow installation of AVG. To replace AVG LinkScanner with AVG, please proceed as follows:

• Uninstall AVG LinkScanner
  - Open Start -> Programs -> AVG LinkScanner® -> Uninstall AVG LinkScanner®.
• Restart your computer.
• Download AVG installation file from the Download section of our website, according to your AVG edition.
  - When you are prompted, please do not open this file directly from the Internet, but click the Save button and choose a location, where the installation file should be stored (we recommend saving the file to the Desktop).
• Proceed as described in FAQ 1995 to install AVG.