Avast Antivirus free downoad

Avast! is an antivirus computer program developed by AVAST Software a.s. (formerly known as ALWIL Software a.s.), a company based in Prague, Czech Republic. It was first released in 1988^[1] although back then it was just a tool to remove the Vienna malware. In 1995 Ondrej Vlček wrote the first anti-virus software for Windows 95 while he was still busy finishing his university studies.

Avast! is based on a central scanning engine that is certified by ICSA Labs^[2] and West Coast Lab's Checkmark process^[3] and incorporates anti-spyware technology, also certified by West Coast Lab's Checkmark process,^[4] as well as anti-rootkit and self-protection capabilities. It is a multiple recipient of the Virus Bulletin VB100 Award for its detection of 100% of "in-the-wild" viruses,^[5] and is a past winner of the Secure Computing Readers' Trust Award.^[6] The name Avast is derived from "Anti-Virus – Advanced Set".^[7] Its trademarked name is styled in all lower-case and includes an exclamation mark, and a slogan 'be free'.

Avast! Free Antivirus is the freeware version of the Avast! antivirus software available to Microsoft Windows and Linux users, while Avast! Pro Antivirus is offered to businesses and users who want additional features. Priority updates are delivered automatically using PUSH update technology in Avast! Pro Antivirus. Avast! Pro Antivirus also has a command line scanner and a script blocker; however, in version 6, the script blocker is available to users of the free version.^[8]

Avast! Antivirus is a widely used antivirus program, with over 165 million users worldwide as of October 2011.

 

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Avira Antivirus free download

Avira Operations GmbH & Co. KG is a German antivirus software company. When founded, the company was called "H+BEDV Datentechnik GmbH". Its antivirus applications are based on the AntiVir scan engine also known as "Luke Filewalker" (referring to Luke Skywalker), first launched in 1988. For aesthetic reasons, the name was changed to Avira. Avira's engine has been licensed to Ashampoo, Ad-Aware, and Webroot WebWasher.^{[citation needed]} Avira is one of the most widely used antivirus programs in the world, with 100 million users worldwide as of September 2009.^[1] The company supports the Auerbach Stiftung, a foundation created by the company's founder and CEO, Tjark Auerbach. It supports charitable, social, cultural, and science projects.^{[citation needed]}

"Avira security software" refers to a range of antivirus and Internet security software for the Windows, Linux, FreeBSD, OpenBSD, and Solaris computing platforms by Avira.

On October 17, 2008, a major update to the search engine was released, which increased scanning speed by 20%.^[2]

Avira Operations periodically "cleans out" the virus definition files, by replacing specific signatures with generic ones, which results in a general increase in performance and scanning speed. The last database clean-out was made on October 27, 2008, which caused problems to AntiVir Personal users when updating because of its large size (15 MB) and because of AntiVir Personal's slow servers. For that reason Avira added an additional 6 GB of bandwidth to the AntiVir Personal Servers^[3] and changed the updating process: Nowadays there are 32 smaller definition files which are updated regularly to avoid peaks in the download of updates.

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free download AVG 2012

AVG is a family of anti-virus and Internet security software for the Microsoft Windows, Linux, Mac OS X, and FreeBSD computing platforms, developed by AVG Technologies, a privately held Czech company formerly known as Grisoft.

  
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