Support Article

If you want to install a Kaspersky Lab product version 2010 on your computer, but you have installed another Kaspersky Lab product or third-party antivirus solution, then you are strongly recommended to delete all other installed antivirus solutions before you begin to install a Kaspersky Lab product version 2010.

In case if you have not uninstalled a third-party anti-virus solution before the Kaspersky Lab product version 2010 installation, then a third-party anti-virus solution will be detected by the Setup Wizard and it will be deleted automatically. If third-party software cannot be deleted automatically, you will be asked to uninstall it manually.

In order to remove antivirus software, you can use the standard means of Windows:

• for OS Windows XP:
• in the left lower corner of the screen click the Start button
• click the Control Panel item from the menu that will open

• in the Control Panel window click Add or Remove Programs

• in the Add or Remove Programs window select the application you need to uninstall
• click the Change/Remove button
• the uninstallation process starts
• for OS Windows Vista / 7:
• in the left lower corner of the screen click the Start button
• click the Control Panel item from the menu that will open

• in the Control Panel window click Programs

• in the Programs window click the Programs and Features link

• in the Programs and Features window select the application you need to uninstall
• double-click the application
• in the Programs and Features dialog window confirm that you want to uninstall the application by clicking the Yes button
• the uninstallation process will start.

After you have uninstalled an application using the standard means of Windows, some folders and files of uninstalled applications may remain in your system. Check up the Program Files folder. If you find any folders or files of uninstalled applications, delete them.

Sometimes after removal of third-party antivirus software with the standard means and the computer restart some records may still remain in the system registry and prevent a Kaspersky Lab product from installation. If in registry there are any records of a third-party antivirus solutions, you will know it during a Kaspersky Lab product version 2010 installation.

Before the files are copied onto a hard disk the Setup Wizard scans the disk for software incompatible with Kaspersky Lab applications. Records in the system registry are recognized by the Setup Wizard as fully installed third-party software, even though the product was removed and is no longer installed on the PC. As a result Kaspersky Lab Setup Wizard asks to delete the detected incompatible software manually and terminates the installation process.

In order to resolve the problem, you are required to manually remove a third-party product; use the removal tools provided on the Tools and Utilities page:

• http://support.kasperskyamericas.com/home/tools-utilities