Hi suck , welcome .
What you are asking is pretty well the default of the Avast! scanner.
Start the scanner , (right click the "a"ball in your taskbar and select "Start Avast! Antivirus" ) or, Start , Programs , Avast! Antivirus.
The memory scan will begin , then a "splash screen" with instructions on simple tasks will appear with Avast! scanner Interface .
At the top left of the Interface there's a tab which will drop down all your options. You can set up everything , such as Logging by selecting "settings" . Go through them and read the simple instructions on the Splash Sceen .
scan the whole drives
Either go to the Tab and select your options for the scan .
You can select to scan your Hard drive(s) by clicking on the picture of a Hardrive on the right of the silver panel interface , the top one.
A sensitivity option panel will appear , Quick , Standard , or Thorough ; with an option to scan Archive files. Make your selection. Click the "Play" button . (Middle Left)
Hope that helps,that's why we're here , plus reading the simple instructions is a great idea
