[KB2769] Exclude files or folders from scanning in ESET home and small office applications for Windows

Issue

  • File-level scanning of some email servers, backup software, gaming applications or similar is causing abnormal system behavior
  • Exclude specific applications or folders from all scan activity (Startup scan, On-access scanning and Computer (On-demand) scanning)

Details


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When performing a computer scan, the Scan log may contain notifications such as "unable to open," "error opening," or "archive damaged."

Your ESET application is unable to scan these file entries:

  • The file is password-protected (for example, there are multiple user profiles on the computer)
  • The file is a Windows system or program file
  • The file is currently in use by other programs or background processes

Windows uses and locks certain files from startup until shutdown. These files and any others running in memory cannot be used by or tampered with by other programs, including ESET applications or potential malware. ESET scans these files during startup and again during shutdown to ensure that they are not corrupt. If a locked file contains a threat, it will appear in red text in the scan log. Files displayed in yellow are noted for informational purposes only and do not pose a threat to your system.

For more information about exclusions, see:


Solution

Related solution: macOS users

Exclusions might weaken the protection of your device

We recommend only excluding necessary files and folders. Excluding parts of your disk from scanning may weaken the protection of your device.

Detection Exclusions

To add an exclusion using a detection name or SHA-1 file hash, use Detection Exclusions. Excluding by detection name or SHA-1 file hash poses a high-security risk and is recommended only for advanced users.

  1. Open the main program window of your ESET Windows application.

  2. Press the F5 key to open Advanced setup.

  3. Click Scans → Edit next to Performance Exclusions.

  4. Click Add → the three dots next to Path to browse for the file or folder you want to exclude.

  5. Choose the file or folder, then click Open or Select Folder.

  6. Click OK → OK → OK to save the exclusion.

    Using wildcards

    Use wildcards to exclude a group of files. Use a question mark (?) to exclude a single character and an asterisk (*) to exclude a string of characters. We do not recommend using wildcards in the middle of a path.

    For more information about using wildcards, see Add or Edit performance exclusion.