How to use Virus Chest in Avast Antivirus and Avast One | Avast

Virus Chest - Getting Started

Virus Chest is a safe place in Avast Antivirus for storing potentially harmful files and completely isolating them from the rest of your operating system. Files inside Virus Chest cannot be accessed or run by any outside processes, software applications, or viruses.

By default, files are moved to Virus Chest in the following ways:

  • If you run a predefined Avast Antivirus scan and it detects a suspicious file.
  • If an active Avast Antivirus shield detects a suspicious file.

Alternatively, you can move files into Virus Chest manually.

Access Virus Chest

Access Virus Chest in one of the following ways:

  • Open Avast Antivirus, then go to ProtectionVirus Chest.
  • In the notification area, right-click the Avast icon and select Virus Chest.

Move files to Virus Chest

Avast Antivirus automatically moves malicious files to Virus Chest if they cannot be repaired.

You can customize the default actions in the individual settings for each antivirus scan or shield. For more information, refer to the following articles:

To manually add files to Virus Chest:

  1. On the Virus Chest screen, click Add file....
  2. Locate the file you want to move to Virus Chest, and click Open.

The file now appears in Virus Chest and can be sent for analysis.

Restore files from Virus Chest

Restoring files from Virus Chest poses a high security risk. This action requires advanced user knowledge and is only intended for specific situations (for example, if a critical system file is accidentally moved to Virus Chest).

To move a file out of Virus Chest:

  1. Tick the box next to the relevant file in Virus Chest.
  2. Click More options (three dots), then select an action:
    • Restore: moves the file to its original location on your PC.
    • Restore and add exception: moves the file to its original location, and adds the file to your exceptions list to exclude it from all Avast Antivirus scans and shields. To view your exceptions list, go to MenuSettingsGeneralExceptions.
    • Extract: moves the file to a chosen location on your PC.
  3. Click Close.

Submit files to Avast Threat Labs

To ensure your PC stays protected, send files to Avast Threat Labs for further analysis. We recommend sending the following file types:

  • Potential malware: files that Avast Antivirus has not identified as malware, but you believe may be malicious.
  • False positive: files that Avast Antivirus has identified as malware, but you believe may be clean.

To submit a file to Avast Threat Labs:

  1. Tick the box next to the relevant file in Virus Chest.
  2. Click More options (three dots), then select Send for analysis.
  3. Select either Potential malware or False positive and enter any additional information about the file into the text box, then click Send.
  4. Click Close.

The file is submitted to Avast Threat Labs for further testing. In most cases, Avast Threat Labs processes the files they receive without sending a response to you.

Delete files from Virus Chest

This action permanently deletes files from your PC and cannot be undone.
  1. Tick the box next to the relevant file in Virus Chest.
  2. Click Delete all at the bottom of the Virus Chest screen.
  3. Click Yes, delete to confirm.

Manage Virus Chest settings

By default, Virus Chest is allocated a maximum space of 5120 MB, which you can change in Virus Chest settings. To configure Virus Chest space allocation:

  1. Open Avast Antivirus, then go to ProtectionVirus Chest.
  2. Click Settings (the gear icon).
  3. Click in the text box, and redefine the maximum size for your Virus Chest.

The Virus Chest space allocation is now changed.

Avast One is currently available only in Australia.

Virus Chest is a safe place in Avast One for storing potentially harmful files and completely isolating them from the rest of your operating system. Files inside Virus Chest cannot be accessed or run by any outside processes, software applications, or viruses.

By default, files are moved to Virus Chest in the following ways:

  • If you run a predefined Avast One scan and it detects a suspicious file.
  • If an active Avast One shield detects a suspicious file.

Alternatively, you can move files into Virus Chest manually.

Access Virus Chest

To access Virus Chest:

  1. Double-click the Avast One shortcut on your desktop to open the application.
  2. Click the Device protection tile on the Avast One dashboard.
  3. Select Virus Chest.

Move files to Virus Chest

Avast One automatically moves malicious files to Virus Chest if they cannot be repaired.

To manually add files to Virus Chest:

  1. On the Virus Chest screen, click Add file....
  2. Locate the file you want to move to Virus Chest, and click Open.

The file now appears in Virus Chest and can be sent for analysis.

Restore files from Virus Chest

Restoring files from Virus Chest poses a high security risk. This action requires advanced user knowledge and is only intended for specific situations (for example, if a critical system file is accidentally moved to Virus Chest).

To move a file out of Virus Chest:

  1. Tick the box next to the relevant file in Virus Chest.
  2. Click More options (three dots), then select an action:
    • Restore: moves the file to its original location on your PC.
    • Restore and add exception: moves the file to its original location, and adds the file to your exception list to exclude it from all Avast One scans and shields. To view your exception list, click the User icon ▸ SettingsExceptions.
    • Extract: moves the file to a chosen location on your PC.
  3. Click Close.

Submit files to Avast Threat Labs

To ensure your PC stays protected, send files to Avast Threat Labs for further analysis. We recommend sending the following file types:

  • Potential malware: files that Avast Antivirus has not identified as malware, but you believe the files may be malicious.
  • False positive: files that Avast Antivirus has identified as malware, but you believe the files may be clean.

To submit a file to Avast Threat Labs:

  1. Tick the box next to the relevant file in Virus Chest.
  2. Click More options (three dots), then select Send for analysis.
  3. Select either Potential malware or False positive and enter any additional information about the file into the text box, then click Send.
  4. Click Close.

The file is submitted to Avast Threat Labs for further testing. In most cases, Avast Threat Labs processes the files they receive without sending a response to you.

Delete files from Virus Chest

This action permanently deletes files from your PC and cannot be undone.
  1. Tick the box next to the relevant file in Virus Chest.
  2. Click Delete all at the bottom of the Virus Chest screen.
  3. Click Yes, delete to confirm.

Increase Virus Chest space

By default, Virus Chest is allocated a maximum space of 5120 MB, which you can change in Virus Chest settings. To configure Virus Chest space allocation:

  1. Double-click the Avast One shortcut on your desktop to open the application.
  2. Click the Device protection tile on the Avast One dashboard.
  3. Select Virus Chest.
  4. Click in the text box, and redefine the maximum size for your Virus Chest.

The Virus Chest space allocation is now changed.

  • Avast Premium Security 21.x for Windows
  • Avast Free Antivirus 21.x for Windows
  • Avast One 20.x for Windows
  • Avast One Free 20.x for Windows
  • Avast Omni 21.x for Windows
  • 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

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