Zachary

Windows Defender is a built-in security application included in Windows 10, 8.1, 8, 7, Vista, and XP.

It protects your computer from viruses, spyware, and other malicious software. Microsoft recommends that all users install Windows Defender, but it is not required to use Avast.

In many cases, Windows Defender is more than enough protection for your computer. However, if you want to use Avast, you don’t need to uninstall Windows Defender.

You can keep both programs installed and use them together. Avast will scan and protect your computer while Windows Defender will keep your computer safe from viruses.