Avast Antivirus: Repair and reset Avast Antivirus

Repairing and resetting Avast Antivirus via the Avast Setup Wizard

When some program components and features in Avast Antivirus are not working properly, you can repair your installation. This repair process resets your software configuration by fixing or replacing program files which may be out of date, corrupted, or missing.

The repair function is available via the Avast Setup Wizard accessible from your Control Panel in Windows.

When you repair Avast, your customized settings are preserved as much as possible. However some settings may be reset to defaults.

You can access the Avast Setup Wizard via your Control Panel list of installed programs.

  1. Press the Win + X keys and select Programs and Features.
  2. Right-click Avast, then select Uninstall or Change.
  1. Press the Win + X keys and select Programs and Features.
  2. Select Avast, then click Uninstall/Change.
  1. From the Start menu select Control Panel.
  2. Click Programs and Features (or Uninstall a program under Programs).
  3. Select Avast, then click Uninstall or Change.
  1. From the Start menu select Control Panel (or Settings and then Control Panel).
  2. Click Programs and Features (or Uninstall a program under Programs).
  3. Select Avast, then click Uninstall/Change.
  1. From the Start menu select Control Panel (or Settings and then Control Panel).
  2. Click Add or Remove Programs (or double-click Add or Remove Programs).
  3. Select Avast, then click Change/Remove.
  1. When the Avast Setup wizard appears, select Repair.
  2. Click Done to finish.

You can access the Avast Setup Wizard via your Control Panel list of installed programs.

  1. On the Windows 10 Start Screen or Desktop simultaneously press the Win + X keys on your keyboard and select Programs and Features from the menu displayed in the bottom left corner.
  2. Right-click your edition of Avast, then select Uninstall or Change from the drop-down menu.
  1. On the Windows 8 Start Screen or Desktop simultaneously press the Win + X keys on your keyboard and select Programs and Features from the menu displayed in the bottom left corner.
  2. Select your edition of Avast by clicking it once, then click Uninstall/Change in the bar above the listed programs, ...and the Avast Setup Wizard appears.
  1. From the Start menu select Control Panel.
  2. If your Control Panel is set to the default Category view, under Programs, click Uninstall a program.. If your Control Panel is set to the Large/Small icons view, click Programs and Features.
  3. Right-click the Avast program and select Change from the menu. Avast Setup Wizard appears.
  1. From the Start menu select Control Panel, ...or select Settings and then click Control Panel if you're using the Classic Start Menu.
  2. Under Programs, click Uninstall a program if you're using the default Control Panel Home view, ...or double-click Programs and Features if the Control Panel is switched into the Classic view.
  3. Select your edition of Avast by clicking it once, then click Uninstall/Change in the bar above the listed programs. ...and the Avast Setup Wizard appears.
  1. From the Start menu select Control Panel, ...or select Settings and then click Control Panel if you're using the Classic Start Menu.
  2. Click Add or Remove Programs if you're using the default Category view, ...or double-click Add or Remove Programs if the Control Panel is switched into the Classic view.
  3. Select your edition of Avast by clicking it once, then click Change/Remove in the bottom-right corner of the highlighted selection. ...and the Avast Setup Wizard appears.
  1. When the Avast Setup wizard appears, select the option Repair.
  2. Once the Avast Setup wizard completes your changes, click Done to finish.
  • Avast Premier 17.x
  • Avast Internet Security 17.x
  • Avast Pro Antivirus 17.x
  • Avast Free Antivirus 17.x
  • Microsoft Windows 10 Home / Pro / Enterprise / Education
  • Microsoft Windows 8.1 / Pro / Enterprise
  • Microsoft Windows 8 / Pro / Enterprise
  • Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate
  • Microsoft Windows Vista Home Basic / Home Premium / Business / Enterprise / Ultimate
  • Microsoft Windows XP SP3 Home / Professional / Media Center Edition

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