Click Run Smart Scan or Run Full Virus Scan from the Antivirus screen.

Open the Avast user interface and go to Protection ▸ Antivirus.

Scanning during startup improves the chances of detecting and removing malware before it can counteract.įor information about running and scheduling a boot-time scan, read the following article:

Boot-time scan: scans your PC during the next system startup before any malware is launched.

Folder Scan: scans the folders you select when you initiate the scan.

For example, external hard drives, USB flash drives, CDs, and DVDs.

USB/DVD Scan: scans any removable storage devices that are currently connected to your PC.

To enable the scan to run quickly, the scan only analyzes potentially risky file types.

Quick scan: scans the main drive of your PC where system files are stored, auto-start programs, and all known types of rootkits.Full Virus Scan: a predefined, in-depth scan of your system that checks your storage drives and memory for malware (including rootkits).Smart Scan: a comprehensive scan that detects malware, out-of-date software, browser add-ons with poor reputations, network threats, performance issues, and passwords that are weak, duplicated, or compromised.In addition to Antivirus shields, Avast Antivirus includes the following scans:

Refer to the following sections for details about Antivirus scans: You can also create your own scan with parameters specified by you. Avast Antivirus provides a range of scans to protect your PC from malware.

Avast free boot scan