The following update works for Bitdefender Total Security, Bitdefender Internet Security, and Bitdefender Antivirus version 9 and 10. If you are looking for the later versions Bitdefender (2010, 2009 or 2008) please go here or Bitdefender (2011, 2012 or 2013) 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.