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The product ThreatFire has been discontinued by PC Tools and is no longer available for download or use. offers no downloadable file for this product and presents data on the last available version for informational purposes only.

Editors' Review

Let's get one thing clear: PC Tools' ThreatFire Antivirus Free isn't supposed to be your system's primary antivirus solution. This behavior-based virus prevention app is designed to work with your antivirus program, firewall, malware scanners, and other security software, and serve as your first line of defense against zero-day threats. Those are new viruses and other threats making their way around the Internet that security specialists haven't yet had time to analyze, much less post updates and fixes for them. ThreatFire scans your computer and programs for indicators that something is amiss, taking action when it detects a threat. It can sniff out viruses, adware, spyware, rootkits, and other potential dangers.

ThreatFire must be installed on a clean PC, so the program's installer scanned our PC to make sure we had no viruses, rootkits, Trojans, or other hidden threats. ThreatFire's mission is to serve as one of four legs of a comprehensive PC security regime, so the setup wizard also verified that we had an adequate firewall as well as protection from viruses and spyware. Once our system received a clean bill of health, ThreatFire's interesting interface opened with the Worldwide Detection tab displayed on the main Security Status page, where the program listed the latest detected threats and pinpointed outbreaks on a world map. Clicking Protection Statistics displayed ThreatFire's log data for our system. ThreatFire offers plenty of options, including exclusion lists, advanced rules settings, default actions, and interface languages.

ThreatFire scanned and verified our system during the installation, but we clicked Start Scan to establish the program's baseline for our system, choosing the Full Scan instead of the quicker Inteli-Scan option, which targets likely hiding places. The Full Scan is thorough and takes about as long as most virus scans. But most of the time, ThreatFire does its thing quietly, in the background. Since it's behavior-based, ThreatFire doesn't require daily updates, but its Smart Update checks for the latest Product, Database, and Language versions. Many antivirus tools now offer behavior-based scans like ThreatFire. If yours doesn't, or if you want the best tool of its type, ThreatFire Antivirus Free is ready.

What do you need to know about free software?


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Full Specifications

What's new in version

Version includes various compatibility and malware detection fixes.


Publisher PC Tools
Publisher web site
Release Date October 11, 2011
Date Added October 11, 2011


Category Security Software
Subcategory Antivirus Software

Operating Systems

Operating Systems Windows XP/2003/Vista/Server 2008/7
Additional Requirements None

Download Information

File Size 9.42MB
File Name External File


Total Downloads 3,630,616
Downloads Last Week 0


License Model Free
Limitations Not available
Price Free
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