Boot-Time Scan: detects and scans malware during your PC startup, removes it before it can damage your computer.Targeted Scan: scans only selected folders and files.Full Virus Scan: in-depth scan of your PC that also can check your storage drives.Smart Scan: detects malware, outdated software, risky browser add-ons, network threats, and performance issues.How To Uninstall Avast Antivirus Using the Avastclear Uninstall UtilityĪvast Antivirus has various types of scans and you can choose the one that suits you the most.How to Exclude Specific Files or Websites from Scanning in Avast.