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How do I perform a manual reinstallation of my Avira Antivirus product?

The described procedure should only be applied if a conventional Avira uninstallation via “Control Panel → Programs and Features/Uninstall a program” fails.

To perform successfully a manual reinstallation of your Avira Antivirus you have to perform first a cleanup of your current Avira Antivirus.

I. Clean your system

1. Delete residual Avira files

  1. Boot your Windows System in Safe Mode.

  2. Make sure that your folder options are set as follows.
    Click: Start → Control Panel → Folder Options → View → Show Hidden Files and Folders → OK

  3. Delete the following folders if they exist:
    • C:\Program Files\Avira
    • C:\ProgramData\Avira
    • C:\Documents and Settings\All Users\Application Data\Avira
    Hint: There is no action required if these folders do not exist.

  4. Boot your Windows System in Normal Mode.

2. Clean your registry

  1. Download Avira RegistryCleaner.
  2. Run the downloaded file.
  3. Click Read Keys and confirm with OK after the scan.
  4. If any keys are found, enable the control box "select all", and click Delete.
  5. Confirm the next prompt with OK.

3. Reset the Windows LSP (Winsock)

This step is only required if your computer is running a Windows 7 operating system.

Windows 7
  1. Click Start → All Programs → Accessories.
  2. Right click "Command Prompt" and run it as administrator.
  3. Type the following command in the command line:
    netsh winsock reset
  4. Press Enter.
  5. Restart your computer.

II. Reinstall your Antivirus
  1. Log in to Avira Connect
  2. Click in the left menu panel the Subscriptions button.
  3. Search for “Antivirus” and click Install.
  4. The previously acquired Avira Antivirus package will be reinstalled, and the license will be activated automatically.

  • Affected products
  • Avira Free Antivirus
  • Avira Antivirus Pro
  • Avira Prime (unlimited devices)
  • Avira Optimization Suite
  • Avira Internet Security
  • Avira Total Security Suite
  • Avira Internet Security Suite


Con fecha del mes de mayo contrate los servicios de la oferta del antivirus y System Speedup en Avira para xp de Windows con un servicio excelente , pero por circuntancias que desconozco un dia se desconecto el System Speedup y desde entonces no e podido restablecer el servicio lo e probado todo y siempre me responde que no tengo conecxiòn
me puede alguien resolver el problema?

I have recently purchased Avira System Speedup and was given the activation code for 1 device. I activated the code, and then used a program in the System Speedup that would increase my computer's bootup. After it has finished the program, I noticed that that I no longer in the pro version. I tired to re-input my activation code, but i said i used the maximum limit for the code to be used. When i also tired for a refund for the product it wont allow me saying that i havent purchased a product even though i bought the System Speedup upgrade. Please help!

In order to transfer your Avira Antivirus Pro license to your new computer
simply install a new program copy onto it following the steps below. Please
make sure to uninstall the current antivirus software (if any) from Control
Panel-> Programs and features before proceeding with the new install.

1. Log in* to your Avira account on our website <http://www.avira.com/>;. The
log in button is found in the top-right corner, next to the shopping cart.

* In order to set up a new password please click here

2. Go to Products and click the info (i) button found next to Avira Antivirus
Pro (shown under "Active Products")

3. Click Download and then run the installation file, following the on-screen
prompts to complete the installation file, following the on-screen prompts to
complete the installation.

Hi, I just changed my PC two weeks ago so I was not be able to install my Avira Pro licence here. Overall because if I log in with my Avira profile now, my licence is still set to my old PC name and I'm not be able to tell it to change to this new one. Now my PC runs only with Avira Free and I want to re-use my licence (I paid until next January!)
Please let me know what I have to do asap.
(Hoping my English is not so bad...) :-)

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