How to install Bitdefender 2020 on Windows

How to install Bitdefender 2020 on Windows (full guide here)

This article guides you on how to install Bitdefender 2020 on Windows.  Before proceeding with the installation, make sure your PC meets the system requirements.

You can also watch the steps presented in the video below.


  • Help - can't install bitdefender on my pc. Going through the steps, and get up to the install button -- after that nothing follows the script . I never get the pop up that allows me to save the installation files and the run them.

  • Hello! How do you do sir? I wanted to try using Bitdefender antivirus free edition. But during the installation I faced some issues. When the installation was close to 90% it performs a rollback action due to installation error. And after that it says Error: Installer initialization failed or something. Before installing bitdefender I have already deleted other antvirus software and even manually checked and deleted the remaining folders. Can you plzz help solving this problem? Thank you.

  • Hello @Hailboy_12345 ,

    Please try these troubleshooting steps.

    1. Restart your computer. (If you have tried this already skip to 2)
    2. Delete the Bitdefender Antivirus Free Edition download file and download a new one (
    3. If the error still persists please contact bitdefender support at

    You can also @ me again and I may be able to help further.😀

  • Hello @MikeA ,

    Did you get a error message or code? If not mind sending a screenshot or a video of what is going on?

    How to Screenshot in Windows: Windows Key + "Print Screen" key (PRT SCN)

    How to Screen Record in Windows: Windows Key + G then you can choose the start recording button or press Windows Key + Alt + R while Game Bar is open.

    You can also contact Bitdefender Support at:

  • Hello @possiblydavid,

    I have already tried those steps. Still no solution. The same problem persists. At 1st I tried to contact their support team. But they told me that for free antivirus I have to come here to seek solution. They only provide support for paid products.

  • Hey @Hailboy_12345 ,

    I just emailed you via our support center. I'll assist you over there.

    Looking forward to your reply!

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