First download Avira Free Antivirus.
Here are step-by-step installation instructions on how to download and install Avira Free Antivirus.
Step 1: Open the downloaded installation file.
Step 2: Click the power button if it appears as a security window
Step 3: Click Next in the Avira Free Antivirus opening window
Step 4: Select a language (the default is English) and click Next. Wait until the download is complete.
Step 5: Select Quick Installation Types (Recommended), check “I agree to the end user license agreement” and click Next
Step 6: You can keep the Internet protection option on or uncheck it, but it is best to enable Internet protection (SearchFree toolbar). Tap “Next
Step 7: If you added the SearchFree toolbar option, enable it by clicking Run at the bottom of the browser. You will see Internet protection, browser security, blocked options added to the browser. You can enable pop-up blocker, cookie blocker, etc. by activating browser security.
Step 8. Close the browser and open the Avira Control Center from the desktop. Here is the final user interface of Avira Free Antivirus and you enable real-time protection, scanning system, upgrade, web protection and many others.