How To Update Bitdefender Manually Bitdefender released weekly definitions (and scan engine updates) on your weekly basis (every Friday) as a weekly .exe application and you can still use it, if you have any problems using this So you can feel free to contact us, we have 24 * 7 available for you, with the Bitdefender Customer Service phone number, however all this should prove to be unsuccessful. Here are the Manual Update Process Steps: 1. First, download the weekly.exe file and save it on your local hard disk. Download weekly.exe (32-bit Windows operating systems) Download weekly.exe (64-bit Windows) 2. Double-click the downloaded file to commence the setup wizard. 3. Click next to run the programs/updates installation process. 4. Select I accept the program terms and click Next. 5. Click Install to start the installation. 6. Click Finish to wind up the installation. We recommend Re Image for various PC problems repair common errors ...