Download Bitdefender 2012-09 Virus Definitions Update January 7, 2023 Download

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

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

1. Download the file for the system and save it locally on your hard drive.
2. Double-click the downloaded file to start the setup wizard.
3. Click Next to start the installation process.
4. Tick ​​that I accept the license terms.
5. Click Next to begin the next.
6. Click Install to begin the installation.
7. Click Finish to close the installation wizard.