On rare occasions, Avira Antivirus may no longer update manually nor automatically. This is caused by the RebootPending.txt file which remains permanently in the installation directory of Avira Antivirus even after a computer restart. Consequently, the computer expects to restart again after the startup and therefore blocks the automatic updates of the antivirus program. How to update the Avira Antivirus: Connect the data carrier to the computer without internet access Open the 'Avira Control Center' via the Avira icon in the taskbar Click in the menu bar Update →.

Avira VDF Update
Because Avira updates its detection files silently and automatically, most of our users never need to install their own Avira Virus Definitions (Updates). Performing an Avira manual update is only necessary under special circumstances, e.g., initiating an Avira VDF update without an internet connection.

Additional information

• Definitions
• 2019-12-01
• 213
• Free
• 107.9MB
• Windows XP / Vista / Windows 7 / Windows 8

• Anti-Malware Software/ Anti-Virus

Other versions

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How to update the Avira Antivirus:

1. Connect the data carrier to the computer without internet access
2. Open the 'Avira Control Center' via the Avira icon in the taskbar
3. Click in the menu bar Update → Manual update, select the vdf_fusebundle.zip file from the connected data carrier and click Open
4. Avira Antivirus updates automatically the latest virus definitions

How to create a VDF Fusebundle archive:

Update Avira Antivirus

• Use a computer with Internet access to download the current Avira Fusebundle Generator
• Extract the downloaded file: avira_fusebundlegen-win32-en.zip
• Open the extracted folder and double-click the file: fusebundle.exe
• The Fusebundle archive (vdf_fusebundle.zip) is created. The creation of the archive may last up to a few minutes
• Open the folder install and copy the new created vdf_fusebundle.zip file onto a data carrier (USB memory, CD-ROM, etc.). It is not necessary to extract the ZIP file