Excluding certain files or websites from scanning in Avast Antivirus

While it is generally not recommended, you may want to exclude certain files or websites from scanning to speed up your scans or to avoid false positive detections.

Set exclusions only if you know that the files and websites you want to exclude are not infected. If you are unsure about a file, you can scan it in Virus Total, or add the file to the Virus Chest and submit it to the Avast Threat Lab. For more information about Virus Chest, please refer to the following article:

Instructions

Global exclusions refers to excluding files and websites from all scans and shields, which analyze activity of files, applications, and web content in real-time.

  1. Open the Avast Antivirus user interface and select MenuSettings.
  2. Ensure the General tab is selected, then scroll down and click the Exclusions panel to expand the section.
  3. Select an appropriate tab to specify the actions an exclusion applies to. Click on the text box to provide details:
    • File paths: type the file or folder location manually into the text box, or alternatively click Browse..., tick the relevant folder, then click OK.
    • Urls: type the website address.
    • CyberCapture: type the file location manually into the text box, or alternatively click Browse..., select a file (.exe), then click OK.
    • Hardened mode: type the file location manually into the text box, or alternatively click Browse..., select a file (.exe), then click OK.
  4. Click OK to confirm.

Manual scans are antivirus scans that you can manage and schedule, for example, Full Virus Scan or Targeted Scan.

  1. Open the Avast Antivirus user interface and select ProtectionScans.
  2. Click Settings under the scan tile you want to set exlusions for.
    The Boot-Time Scan does not allow exclusions.
  3. Select Exclusions, type the file or folder location manually into the text box, or alternatively click Browse..., tick the relevant folder, then click OK.
  4. Click OK to confirm.
File and folder locations can include wildcard characters ? and *. The asterisk replaces zero or more characters, and the question mark replaces a single character. For example:
  • To exclude all HTML files, type *.htm* into the text box.
  • To exclude a folder and its sub-folders, add \* to the end of the folder name, for instance C:\example\* .
  • To exclude all files labeled in a certain way on any of your hard drives, include ?:\ in front of the path, for instance ?:\example.exe .

File Shield continuously scans all files and programs on your PC for malicious threats before allowing them to be opened, run, modified, or saved.

  1. Open the Avast Antivirus user interface and select MenuSettings.
  2. Select the Components tab and click Customize on the File Shield panel.
  3. Select Exclusions, type the file or folder location manually into the text box, or alternatively click Browse..., tick the relevant folder, then click OK.
  4. Tick the appropriate boxes (R, W, X) to indicate when you want the file or location to be excluded (all boxes are ticked by default).
    • R: to exclude the item while it is being read.
    • W: to exclude the item while it is being written.
    • X: to exclude the item while it is being executed.
  5. Click OK to confirm
File and folder locations can include wildcard characters ? and *. The asterisk replaces zero or more characters, and the question mark replaces a single character. For example:
  • To exclude all HTML files, type *.htm* into the text box.
  • To exclude a folder and its sub-folders, add \* to the end of the folder name, for instance C:\example\* .
  • To exclude all files labeled in a certain way on any of your hard drives, include ?:\ in front of the path, for instance ?:\example.exe .

Behavior Shield continuously monitors programs installed on your PC for suspicious behavior that may indicate the presence of malicious code.

  1. Open the Avast Antivirus user interface and select MenuSettings.
  2. Select the Components tab and click Customize on the Behavior Shield panel.
  3. Select Exclusions, type the file or folder location manually into the text box, or alternatively click Browse..., tick the relevant folder, then click OK.
  4. Click OK to confirm

Web Shield continuously protects your PC from threats while browsing the web.

  1. Open the Avast Antivirus user interface and select MenuSettings.
  2. Select the Components tab and click Customize on the Web Shield panel.
  3. Select Exclusions, then type the website address, MIME-type extensions, or process location manually into the text box. To locate a process, click Browse..., select a file (.exe), then click OK.
  4. Click OK to confirm.
URLs, extensions, and file locations can include wildcard characterss ? and *. The asterisk replaces zero or more characters, and the question mark replaces a single character. For example:
  • To block all subdomains and domains of a particular website, add *. to the beginning and /* to the end of the website domain, for instance *.example.com/* .
  • To exclude all HTML file types, type *.htm* into the text box.
  • Avast Ultimate 18.x
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  • Avast Internet Security 18.x
  • Avast Pro Antivirus 18.x
  • Avast Free Antivirus 18.x
  • Microsoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bit
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  • Microsoft Windows 8 / Pro / Enterprise - 32 / 64-bit
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  • 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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