Repairing Avast Antivirus via the Windows Control Panel

If certain program components and features are not working properly in Avast Antivirus, we recommend you repair your installation using the Avast Setup wizard. The repair process resets your software configuration by fixing or replacing program files which may be out of date, corrupted, or missing.

You can access the Avast Setup wizard from your Control Panel in Windows.

When you repair Avast Antivirus, some customized settings may be preserved, however, other settings may return to their default configurations.

Instructions

To repair Avast Antivirus, follow these steps using the Avast Setup wizard which you can access via the Programs and FeaturesAdd or Remove Programs section of your Windows Control Panel:

  1. Right-click the Windows Start button and select Programs and Features from the menu that appears.
  2. Right-click your version of Avast Antivirus, then select Change from the drop-down menu.
  3. Press the Win key and X key simultaneously, then select Programs and Features from the menu that appears.
  4. Right-click your version of Avast Antivirus, then select Change from the drop-down menu.
  5. Click the Windows Start button and select Control Panel.
  6. Under Programs, click Uninstall a program if you are using the default category view, ...or click Programs and Features if you are using the large/small icons view.
  7. Right-click your version of Avast Antivirus, then select Change from the drop-down menu.
  8. Click the Windows Start button and select Control Panel, ...or select Settings and then click Control Panel if you are using the classic Start menu.
  9. Under Programs, click Uninstall a program if you are using the default category view, ...or double-click Programs and Features if you are using the classic view.
  10. Right-click your version of Avast Antivirus, then select Change from the drop-down menu.
  11. Click the Windows Start button and select Control Panel, ...or select Settings and then click Control Panel if you are using the classic Start menu.
  12. Click Add or Remove Programs if you are using the category view, ...or double-click Add or Remove Programs if you are using the classic view.
  13. Select your version of Avast Antivirus by clicking it once, then click Change in the bottom-right corner of the highlighted selection.
  14. When the Avast Setup wizard appears, click Repair.
  15. When the update is complete, click Done.
  • Avast Ultimate 17.x
  • 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 - 32 / 64-bit
  • Microsoft Windows 8.1 / Pro / Enterprise - 32 / 64-bit
  • Microsoft Windows 8 / Pro / Enterprise - 32 / 64-bit
  • Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1, 32 / 64-bit
  • Microsoft Windows Vista Home Basic / Home Premium / Business / Enterprise / Ultimate - Service Pack 2, 32 / 64-bit
  • Microsoft Windows XP Home / Professional / Media Center Edition - Service Pack 3, 32-bit

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