Safe Browsing Blocks harmful websites before they load. Ad Blocker Prevents intrusive and malicious ads, banners, and pop-ups from loading.
Browser Tracking Blocker Stops companies from monitoring you online. Price Comparison Saves you money while you shop. Load more. Laptop, smartphone or tablet? Secure all your devices with Avira.
Discover Antivirus Pro for Mac and Windows. Install Avira Free Antivirus for Windows in 3 easy steps. Run the installer Double-click on the downloaded file. Confirm Click "Yes" on the dialog box to start your installation. Follow the on-screen instructions This should take a few minutes only.
System Requirements Your device is compatible. Free antivirus for Windows by Avira — Made in Germany. Why is antivirus software for Windows PCs important? Why is Windows Defender not enough to protect your system? How to get complete protection for your Windows device? How does Avira Free Security for Windows work?
Avira Free Security: the best free antivirus for Windows Is Avira Free Security for Windows really free? Download the award-winning free antivirus for Windows Download for free Download for free. Important: Your current Windows version is outdated and no longer supported. For your security, we recommend switching to Windows 10 before downloading Avira software. Update your Windows version here.
Get advanced Windows 10 antivirus protection against online threats like viruses and other malware. We offer extra security features such as behavior shield, remote assistance, browser cleaning and more — yep, you guessed it — completely free. The number of attacks prevented against Windows 10 PCs in the past 30 weeks.
Already have Avast? I feel secure and have peace of mind knowing I am safe. Thank you. I strongly recommend it. Write a review. How to install Avast Antivirus on Windows Download the installer by clicking here. You may still be wondering What is the best way to protect Windows 10? Avast provides the best free antivirus for Windows 10 and protects you against all types of malware.
For complete online privacy, use our VPN for Windows Why use antivirus software on Windows 10? However, Avast Free Antivirus is more than equal to the task, and can offer your PC full protection without compromising performance. Is Windows Defender enough to protect my PC? By combining our award-winning technology with our decades of industry experience, we create the best free virus and malware scanning and removal software, effective spyware removal solutions, and other powerful security tools to protect your PC.
Use AVG TuneUp to clean your registry , delete bloatware and other unneeded software, and keep things running smoothly. Install a VPN to encrypt your internet connection, keeping your online activities and IP address hidden from online spies. And anti-tracking software can keep you safe from online tracking and price discrimination. Privacy Report vulnerability Contact security License agreements Modern Slavery Statement Cookies Accessibility Statement Do not sell my info All third party trademarks are the property of their respective owners.
Free Download Free Download. Block ransomware in its tracks Give your important files extra protection from hackers and ransomware.
Discover all the features. Microsoft Defender Antivirus settings can occasionally get changed by malicious, or careless, apps or processes; or sometimes by unaware people. With Tamper Protection turned on, important settings like real-time protection, can't be easily or accidentally turned off. Learn more about Tamper Protection. Use the Controlled folder access setting to manage which folders untrusted apps can make changes to.
You can also add additional apps to the trusted list so they can make changes in those folders. This is a powerful tool to make your files safer from ransomware. When you turn on Controlled folder access, a lot of the folders you use most often will be protected by default. This means that content in any of these folders cannot be accessed or changed by any unknown or untrusted apps.
If you add additional folders, they become protected as well. Learn more about using Controlled folder access. In those rare instances you can add an exclusion for them. Learn more about adding an exclusion to Windows Security. Windows Security will send notifications about the health and safety of your device.
You can turn these notifications on, or off, on the notifications page. See Windows Security notifications. Security intelligence sometimes referred to as "definitions" are files that contain information about the latest threats that could infect your device.
Windows Security uses security intelligence every time a scan is run.
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