If certain application components and features are not working properly in Avast Free Antivirus or Avast Premium Security, we recommend you repair your installation using the Avast Setup window. Installation repair is recommended to resolve the following issues with your Avast application:
- Certain features are not working.
- A scan is stuck mid-progress.
- An application update fails.
When you repair your Avast application, some customized settings may return to their default configurations.
Instructions
- Ensure that no other applications are running on your PC.
- Right-click the Windows
Start icon and select Apps and Features from the menu that appears. - Click
⋮Options (the three dots) and select Uninstall twice. - Right-click the Windows Start icon and select Apps and Features from the menu that appears.
- Ensure Apps & features is selected in the left panel, then click Avast Free Antivirus or Avast Premium Security, and select Uninstall.
- On your keyboard, press the Windows logo key.
- Select Programs and Features from the menu that appears.
- Right-click Avast Free Antivirus or Avast Premium Security, and select Uninstall from the drop-down menu.
- Click the Windows Start icon and select Control Panel.
- Follow option A or option B below according to your view:
- Option A (Default category view): Under Programs, click Uninstall a program.
- Option B (Large/small icons view): Click Programs and Features.
- Option A (Default category view): Under Programs, click Uninstall a program.
- Right-click Avast Free Antivirus or Avast Premium Security, and select Uninstall from the drop-down menu.
- If prompted for permission by the User Account Control dialog, click Yes.
- When the Avast Setup window appears, click Repair.
- Wait while setup repairs your Avast application.
- If prompted, click Restart computer to immediately reboot your PC and complete the repair. If a restart is not necessary, click Done.
Start icon and select Apps and Features from the menu that appears. 
Start icon and select Apps and Features from the menu that appears. 
logo key. 
Start icon and select Control Panel. 
If certain application components and features are not working properly in Avast One, we recommend you repair your installation using the Avast setup window. Installation repair is recommended to resolve the following issues with Avast One:
- Certain features are not working.
- A scan is stuck mid-progress.
- An application update fails.
When you repair Avast One, some customized settings may return to their default configurations.
Instructions
- Ensure that no other applications are running on your PC.
- Right-click the Windows Start icon and select Apps and Features from the menu that appears.
- Click
⋮Options (the three dots) and select Uninstall twice. - Right-click the Windows Start icon and select Apps and Features from the menu that appears.
- Ensure Apps & features is selected in the left panel, then click Avast One and select Uninstall.
- On your keyboard, press the Windows logo key.
- Select Programs and Features from the menu that appears.
- Right-click Avast One, and select Uninstall/Change from the drop-down menu.
- Click the Windows Start icon and select Control Panel.
- Follow option A or option B below according to your view:
- Option A (Default category view): Under Programs, click Uninstall a program.
- Option B (Large/small icons view): Click Programs and Features.
- Option A (Default category view): Under Programs, click Uninstall a program.
- Right-click Avast One, and select Uninstall/Change from the drop-down menu.
- If prompted for permission by the User Account Control dialog, click Yes.
- When the Avast Setup window appears, click Repair.
- Click Yes to authorize the repair.
- Wait while setup repairs Avast One.
- If prompted, click Restart computer to immediately reboot your PC and complete the repair. If a restart is not necessary, click Done.
- Avast Premium Security 22.x for Windows
- Avast Free Antivirus 22.x for Windows
- Avast One 22.x for Windows
- Microsoft Windows 11 Home / Pro / Enterprise / Education
- 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 with Convenient Rollup Update, 32 / 64-bit
Updated on: 02/06/2022
