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Knowledgebase : Avira AntiVir > Avira Upgrade Issues
   

How do I know if AntiVir is up to date? Your AntiVir is up to date, if you have the current virus definition file. This file is usually updated several times each day. This is how you can check, if you have the current VDF: Start the update. If yo...
How frequently are VDF-updates available? Our experts in the Virus Lab work round the clock on virus analysis in order to supply new signatures. Updates may take place between 3 and 5 times a day.
How to manualy update your antivirus Avira? Please go through the following steps to update your AntiVir Software on a PC without internet access. 1. Download the latest virus definition file (IVDF) on a PC with internet access directly from the Avi...
How do I configure AntiVir so that it downloads and installs its updates automatically from the internet? Easy: Open the configuration window and select the Updates tab, where "Update using an Internet connection" and "Source URL: www.antivir...
Is a restart required after update? After upgrading to version 10, Avira AntiVir products for Windows Desktops (Personal, Premium, Premium Security Suite and Professional) require a restart, to remove older directories, files and registry entries. I...
Why is the Last update status "Not performed" after migration? After migrating to version 10, you might see the status Not performed for Last update in the Control Center. This is only a trivial error. To be sure, you can check the update files as f...
Incompatibility warning after installing AntiVir on Windows 7 If you install an older version of Avira AntiVir on Windows 7, an incompatibility warning appears after the installation. When you open AntiVir Control Center, you can see that the Online...
Should I deactivate Windows Defender, if I use AntiVir? If one of the Avira modules remains inactive after installation on Windows XP, Windows Vista or on Windows 7 we recommend that you deactivate Windows Defender. You can check the Windows System E...
Why do I get the error message 537 during update? Based on the customer support feedback, this article provides solutions to the most common causes of error during AntiVir updates. Start Avira AntiVir Control Center and click Start update. A window ...