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Bitdefender Antivirus error 65573

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Last updated on March 15, 2022
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Do you use Bitdefender Antivirus to protect your computer, but are you getting the error '65573'?

Bitdefender is a home security software that is developed by Bitdefender. It is known for being one of the most popular antivirus programs on the market. The company was founded in 2001 and it was established in Bucharest, Romania. Bitdefender is available in different languages such as English, German, Spanish, French and Romanian.

Bitdefender offers several features that can be used to protect your devices against viruses and malware. The software can be used to protect your computer against viruses and other malicious software as well as it can be used to protect your mobile devices against viruses and malware. In addition to these features, Bitdefender also offers various security solutions such as parental controls and web protection for your home network.

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On this page, you will find more information about the most common causes and most relevant solutions for the Bitdefender Antivirus error '65573'. Do you need help straight away? Visit our support page.

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Error information
  • Category
    Security
  • Error code
    65573
  • Product
    Bitdefender Antivirus
  • Developer
    Bitdefender
  • Operating system
    Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP
  • Platform
    PC
  • First seen
    July 25, 2021
  • Verified
    -
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How to solve Bitdefender Antivirus error 65573

We've created a list of solutions which you can follow if you want to solve this Bitdefender Antivirus problem yourself. Do you need more help? Visit our support page if you need professional support with Bitdefender Antivirus right away.

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Verified solution

If you are having issues with your Bitdefender antivirus or if you encounter errors while using this product, then you might encounter error code 65573 on your device’s screen. This error can occur when there is an issue with your device or it can occur when there is an issue with the power supply of your device or computer. Sometimes, it is possible that common device errors or server problems cause this error.

Usually, you need to perform a few troubleshooting steps to fix this error.

If you are currently using the default DNS from your internet provider, then you should switch to a third-party DNS server that you think is faster and more reliable.

Also, setting aggressive firewalls (e.g., Microsoft Firewall Pro vs. The firewall on Windows, and other firewalls (such as 3rd party firewalls or router’s built-in firewall) can prevent Bitdefender from communicating with the activation server.

In addition, the internet explorer version that you are using could be outdated or corrupted. Some of the components of Windows are closely connected with Internet Explorer, and Bitdefender runs on the Internet Explorer framework. Set your internet Explorer settings so that it is fully functional and up to date.

If you have followed all the above steps, and yet Bitdefender is still unable to connect to the server, then it is possible that there is something wrong with the way the network is configured. So, in order to correct this problem, flush the DNS and reset it by following the steps below.

When you are able to execute commands, click on the Start menu, and type cmd. Then right-click on the Command Prompt option in the search results and choose Run as administrator.

  • Just write the following at the command prompt:

ipconfig /flushdns

  • Press Enter on the keyboard.
  • Type the command ipconfig /release, press enter.
  • Just type ipconfig /renew and hit Enter.
  • Next, type netsh winsock reset into the search box, and press enter.
  • After you type netsh int ip reset, press enter.
  • Restart your computer after that happens.

The final thing you can do is call customer service to get this error fixed. You can also contact them by calling their customer service number or by visiting their website. When you tell the customer support department an error code that is showing on your screen, they will usually ask you to send the code to them. They will tell you what to do next and how to approach this problem.

Quick fixes

Try one of the quick fixes below to quickly resolve the Bitdefender Antivirus error 65573.

Restart your computer

Quick action

Restart your computer if you haven't already done so. A simple reboot can solve a lot of issues.

Read the full guide Report

Repair the app

Repairing or reinstalling an app will replace corrupted files and remove temporary files, restoring the app back to its original state.

Read the full guide Report

Reinstall the app

Reinstall the app to remove all data and clear the app's settings.

Read the full guide Report

Have you found a solution yourself, but it is not in the list? Share your solution in the comments below.

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