Boot-Time Scan - Settings

The Sensitivity section of the Boot-Time Scan settings screen allows you to define the following settings:

• Sensitivity: use the slider to determine your preferred level of sensitivity. You can select Low sensitivity, Medium sensitivity (selected by default), or High sensitivity.
• Scan for potentially unwanted programs (PUPs): tick this option if you want the scan to look for programs that are stealthily downloaded with other programs and typically perform unwanted activity.
• Unpack archive Files: tick this option if you want the scan to analyze all archived files upon startup.

Note: The more options you tick and the higher you set sensitivity, the more thoroughly Avast checks your PC before other programs have a chance to counteract. With higher sensitivity, scans are slower, false-positive detections are more likely, and more resources are consumed on your PC.

The Scan areas settings section allows you to configure which areas Boot-Time Scan will check for malware and unwanted programs.

Enable one of the following options:

• All Harddisks (recommended and selected by default): allows Avast to scan data that is stored on all physical devices such as hard drive and USB sticks.
• System drive: allows Avast to scan data that is saved on your hard drive only.

Select the following area to be scanned:

• Auto start programs: allows Avast to scan programs that automically start when you turn on your computer.

Note: The more options you tick, the more thoroughly Avast checks your PC upon startup. With more thorough checks, scans are slower, false-positive detections are more likely, and more resources are consumed on your PC.

This section allows you to configure automatic responses to any threats detected by the scan.

To set an automatic reponse to a threat:

1. Tick Perform automatic actions during this scan (ticked by default).
2. Select one of the following automatic actions:
   • Fix automatically (recommended and selected by default): attempts to repair the file. If unsuccessful, moves the file to the Quarantine or deletes the file if neither action is successful.
   • Move file to Quarantine: sends the file to the Quarantine, where the file cannot harm your system.
   • Delete file: permanently removes the file from your PC.