Removing Incompatible AVG Software Entries While Installing Kaspersky KIS and KAV

At the time of installing Kaspersky Anti-Virus or Kaspersky Internet Security, the following error massage “Incompatible Software” window will appear during the setup, and the process will stop and avert the running installation process of Kaspersky product.

When this error takes place, the complete installation of KAV or KIS stop working and displays “Attention! Various unsuited softwares are installed on your PC. This application cannot be used along with Kaspersky Internet Security 2009. In order to proceed with the installation, you’ll need to first and eliminate these applications”.

The button “Next” halts and gets grayed out at this step, and hence the user cannot or will not able to install KIS or else KAV. This stop suspend error occurs in spite of no AVG security program being installed on your system previously, or if the AVG Antivirus or any other product has been uninstalled before to the Kaspersky installation.

After that, if you choose and highlight the unsuitable software (i.e. selects AVG from the list of softwares) and click the “Remove” option, it will open “Add or Remove Programs”. Then there will be another dialog box that says “In order to carry on with the installation process, please remove unsuited software. (You have to reboot your computer after uninstallation process). Then open and run the installation procedure once again. Now there is no other way to install Kaspersky, unless of course use tha hack.

The setup installer of Kaspersky has button that lets you to convincingly avoid detection of unsuited software throughout setting up of KIS or KAV. However, the procedure can be difficult and for beginner computer users. The best possible way is certainly to alter the Windows registry to eliminate reference keys to AVG software at all.

To remove all registry keys that are in reference to AVG security product, follow the steps given below: –

  • First of all open registry editor. To open the registry editor open RUN box in Start and type “regedit
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\AVG8Uninstall

To remove all the AVG linked registry keys, right click on AVG as well as AVG8Uninstall, choose Delete. These are the two identified registry keys that are installed by AVG. Both of these registry keys should only be detached only if any of the AVG programs is no longer installed on your PC.

You may click on Edit menu also and use “Find” command to explore AVG linked registry keys, but you have use your general logic to discover which key is related to AVG and which key is not. For instance “AVGeneralNotification”, this key is system related entry, and must not be removed.

After removing the proper key, open and run the Kaspersky product setup installer once again in order to install KIS or KAV, obviously it will works correctly now.

Note: – If you are come across any other unsuitable software with products from the other vendors, such as the security software as of Agnitum, ALWIL Software, AhnLab, Authentium, Ashampoo, Avira, Command, BitDefender, CA, Comodo, ClamWin, Dr.Web, ESET, F-Prot, Lightspeed, Grisoft, McAfee, Norman, Sophos, Panda, Trend Micro, Symantec and etc. Then simply look at the comparable registry position to any linked registry key for elimination.

You can also download and install CCleaner, as it is freeware, if you don’t want to take any risk of editing the incorrect registry keys and to play it safe. Then you can use this software for removal of the entire orphan registry keys left behind by other softwares and AVG after un-installation.

Related posts:

1> Safe to remove Free AVG’s Virus vault ?


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