Microsoft Security Essentials is a free download from Microsoft that is simple to install. The background so that you are free to use your Windows-based PC the way you want. 10Keep your Malwarebytes Anti-Malware updated, even if offline. Download Avira Free Antivirus 2019 Award-winning free antivirus for Windows Top-of-the-line malware protection – cleans adware & removes spyware Best-in-class ransomware protection – detects all known threats Repairs damaged files.

Around-the-world, around-the-clock protection We’re proud to protect millions of Windows 10 PCs. But you don’t have to take our word for it: Check to see how many PCs we’ve protected this week alone. Avast prevented virus attacks on Windows 10 PCs in the past week. Avast prevented virus attacks on Windows 10 PCs in the United States just last week. The United States’ Windows 10 PCs are the third most attacked in the world. The number of attacks prevented against Windows 10 PCs in the past 30 weeks.