All-in-one performance suite, which includes PC cleaner, antivirus, free VPN, and more
- Cleans your PC, your registry, and enhances your PC's speed
- Protects your personal data from scams, spies, and ransomware
- Encrypts and anonymizes your web browsing
4.5/5 on Trustpilot
Over 19 000 Ratings
Award-winning tech relied on by 500 million users and Fortune 500 companies.
Take out the digital trash without leaving the couch
Over time, your hard drive becomes cluttered. Free Security scans your PC for all the stuff you no longer need — system caches, temp files, internet junk, and unnecessary user data. Then, it removes them, cleaning your PC and freeing up disk space in the process.
Rediscover that out-of-the-box feeling of peak performance
Too many programs trying to run automatically can really slow you down. Free Security boosts performance and reduces lags.
- Tunes and defrags your disk
- Shortens your boot time
- Puts apps to sleep
- Removes bloatware and other hard-to-uninstall apps
Fix your PC's problems. It's easy.
Free Security is packed with tools to help you fix some of the most annoying problems, including crashes and freezes. And you don't need to be an IT pro to use them.
Analyzes your registry and fixes problems
Helps fix hard drive errors
Cleans browsers
Take our product tour
Click the icons on the left and center to learn more about Avira Free Security's features and benefits
You are protected
Last update: 10 minutes ago
Security
Privacy
Performance
Click on the blue ⓘ above and smart scan below for more details
Full virus scan
Scan your entire device for threats
Create, run, and schedule scans to protect your entire system from viruses, malware, and other common threats.
Protection options
See your security status and set up your Antivirus
If you have special requirements, you can choose to customize and tweak all security features to your liking.
Quarantine
Repair or delete unsafe files
We automatically quarantine high-risk files to prevent them from causing harm. Don’t worry—you’ll still have the option to view and restore quarantined files.
Software updater
Fix security risks in your apps
Update outdated and vulnerable apps easily with one click. You’ll never need to manually update an app again (thank goodness).
Firewall
Block hackers and other threats
Block open ports through which hackers and malware might have been able to exploit.
Browser safety
Avoid tracking and block ads on Chrome and Firefox
Our browser enhancements protect you from phishing attempts, harmful websites, unwanted software downloads, and annoying ads. They also block hidden trackers that collect information about your search and browsing history.
VPN
Connect to the Internet anonymously
Encrypt your communications, surf anonymously, and bypass web restrictions to gain access to all the online content you love—on every device.
Passwords
Manage passwords safely and easily
Use our onboard Password Manager to keep track of all your passwords. Generate and securely store unhackable passwords. Sync them across all your devices for access anytime, anywhere. You can even enable automatic logins to your favorite websites.
File shredder
Erase sensitive data securely
Delete files for good, so that nobody can ever restore them.
System privacy
Prevent Windows and apps from sharing your data
Stop Windows and other programs from collecting data about you and solve over 200 other privacy issues with a single click.
Cleaner
Free up space on your device
Need more space for all those photos? Give yourself the gift of more storage with just a single click to delete junk files, traces of your online activities, and invalid registry entries.
Startup optimizer
Start your device faster
Sick of having a slow device? Use this handy feature to monitor the programs that start on boot and remove the ones you don’t need.
Battery saver
Get a long-lasting battery
Feeling drained? Use our convenient tool to optimize and prolong your battery life.
Driver updater
Make your connected devices run smoothly
Is your system slow or troublesome? Outdated device drivers could be the reason. With this handy feature, you can automatically update drivers to their latest and recommended versions.
Duplicates finder
Get rid of double files
Are you running out of space (again)? Find duplicate photos and files and instantly remove them to free up space.
Customers love us. Cyber attackers and privacy violators, not so much.
4.5/5 - Excellent
18,000+ reviewsRating: 4.4 stars
About Avira
Privacy over profit
Avira has been protecting people for over 30 years. We offer free solutions because we believe privacy is a right, not a privilege. We don't sell your data, nor do we share it with 3rd parties such as government, Big Tech or advertising networks. We create software to keep you safe online - and protect your privacy against those who would monetize it.
Avira Free Security
No credit card
No email
We never sell your data