BitDefender Virus Definitions Update

Bitdefender Virus Definitions Update December 13, 2019

Keep your Bitdefender Anti-Virus updated with the latest definitions.


Quick Facts


287 MB
4.6 325 votes
Certified clean download - Tested by TechSpot

The following update works for Bitdefender Total Security, Bitdefender Internet Security, and Bitdefender Antivirus. Just choose the version of your software (2013, 2012 or 2011) and the version of your operating system (32-bit or 64-bit). If you are looking for the earlier versions of Bitdefender (2010, 2009 or 2008) please go here, for version 10 please go here.

To update Bitdefender using weekly.exe, follow these steps:

  1. Download the file for your system and save it locally on your hard disk.
  2. Double-click downloaded file to start the setup wizard.
  3. Click Next to begin the installation process.
  4. Check I accept the terms in the License Agreement and click Next.
  5. Click Install to begin installing.
  6. Click Finish to close the installation wizard.

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