Looking for a performance boost? Avast Free Antivirus detects and blocks all types of malware in real time to prevent them from infecting your computer. At the same time, it scans your PC to remove viruses and other malware automatically before they can do real damage.
Feeling up for a challenge? You can also try to remove viruses and malware the old fashioned way. A computer virus is a type of malware that can spread quickly between computers and other devices.
Learn how viruses work and how to protect against them. Want to learn about malware? Read this ultimate guide to find out what malware is, how it works, how it spreads and what you should do to protect yourself.
Have you noticed your Windows PC behaving strangely? Find out how to detect and remove viruses and other malware in this complete guide. Trojan horse malware disguises itself as harmless to trick you into installing it. Learn how Trojans work and how to prevent attacks. Find out how to check for and detect keyloggers. Then learn how to remove them to protect your personal information and sensitive data.
Ransomware is a serious threat to individuals, businesses, and even hospitals. Learn how ransomware works and block hackers from holding your files hostage. Doxing, or doxxing, is the release of someone's personal info without their consent. Find out how doxing works and how you can prevent it. The best passwords are strong enough to thwart a brute force or dictionary attack. Find out how to create good, easy-to-remember passwords. Note : If your download did not start automatically, please click here.
If you need to install Avast on a PC without an internet connection, you can download the offline installer here. Worldwide English. In order to view this page correctly, you must have a JavaScript-enabled browser and have JavaScript turned on. We apologize for any inconvenience. It performs an incremental backup, which means that the name for the new threats are added to the existing signatures.
Avast Virus Definitions VPS works with any version of the Avast Antivirus and the database update does not require the re-installation of the software. In order to ensure continuous and effective protection of your system, the virus database of your Avast product needs to be up-to-date. The latest virus definitions for your Avast antivirus, providing an alternative method to keep the signatures up-to-date in case an Internet connection is not available.
Load comments. The availability of a new version is checked when an Internet connection is established, and every four hours afterwards.
Update files can also be downloaded from these pages if required e. Updates are usually released on a daily basis. Worldwide English. Note : If your download did not start automatically, please click here. If you need to install Avast on a PC without an internet connection, you can download the offline installer here. In order to view this page correctly, you must have a JavaScript-enabled browser and have JavaScript turned on. We apologize for any inconvenience.
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