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Security Software for Windows

The Security Software category is your source for antivirus, anti-spyware, and encryption apps. Download.com's... more
The Security Software category is your source for antivirus, anti-spyware, and encryption apps. Download.com's extensive collection of security software is designed to safeguard your online activity.
Avast Free Antivirus

Avast Free Antivirus
Free

Avast Free Antivirus

Stay safe from viruses, malware, spyware, and hackers.

Free
Editors' rating
User rating
Publisher: AVAST Software Downloads: 393,499,625
Malwarebytes Anti-Malware Free

Malwarebytes Anti-Malware Free
Free

Malwarebytes Anti-Malware Free

Detect and quickly remove malicious threats to your computer.

Free
Editors' rating
User rating
Publisher: Malwarebytes Downloads: 142,724,690
Panda Free Antivirus

Panda Free Antivirus
Free

Panda Free Antivirus

Protect your PC against viruses, spyware, rootkits and Trojans.

Free
User rating
Publisher: Panda Security Downloads: 11,973,505
AVG AntiVirus Free

AVG AntiVirus Free
Free

AVG AntiVirus Free

Protect your computer from viruses and malicious programs.

Free
Editors' rating
User rating
Publisher: AVG Technologies Downloads: 561,800,910
IObit Malware Fighter

IObit Malware Fighter
Free

IObit Malware Fighter

Scan and remove malware from your system.

Free
User rating
Publisher: IObit Downloads: 20,714,912
RoboForm

RoboForm
Free to try

RoboForm

Login everywhere automatically, so you'll never need to remember or type your passwords again.

Free to try
Editors' rating
User rating
Publisher: Siber Systems Downloads: 28,082,885 External File

This software is available to download from the publisher site.

Advanced SystemCare Ultimate

Advanced SystemCare Ultimate
Free to try

Advanced SystemCare Ultimate

Protect your computers from viruses and speed up overall system performance.

Free to try
User rating
Publisher: IObit Downloads: 1,977,085
Betternet

Betternet
Free

Betternet

Connect to the Web without censorship or restrictions.

Free
User rating
Publisher: Betternet Downloads: 1,672,712
AdwCleaner

AdwCleaner
Free

AdwCleaner

Search and remove unwanted adware and toolbars from your computer.

Free
Editors' rating
User rating
Publisher: Xplode Downloads: 3,276,786
SmadAV 2016

SmadAV 2016
Free

SmadAV 2016

Protect your computer from viruses.

Free
Editors' rating
User rating
Publisher: SmadAv Downloads: 1,607,526
Results 1 - 10 of 6,815

About Security Software

The Security Software category is your source for antivirus, anti-spyware, and encryption apps. Download.com's extensive collection of security software is designed to safeguard your online activity.