McAfee Security: FreeScan from an industry leader. You need to either sign in with your existing Microsoft .NET passport or create an account.
McAfee FreeScan:
Based on the award-winning McAfee VirusScan engine, FreeScan searches for viruses, including the latest known "in the wild" viruses, and displays a detailed list of any infected files. Should viruses be found, FreeScan even provides links to give you more information about the virus and what you can do to clean your system.
Internet Connection Speedometer check. Checks you Internet connection speed.
AuditMyPC.com:
Free scan for spyware, security holes and popups.
After checking you system presents a list of software that is installed on your machine. It then offers a Fixes link whcih has instructions with dealing with any of the potential problems.
it.sec: Free Online Security Check
This test checks for many security problems and i.e. if your computers shares may be unexpectedly accessible to intruders via the Internet.This threat exists not only for hosts permanently connected but also and perhaps, particularly for those temporarily logged into virtually any provider's dial-in pools via telephone or ISDN.
pcflank.com:
Offers many free tests of your PC and communication ports and has expert advice. Asks you to verify your detected IP address.
Port Scan Security Check
This free security check is provided by Secure Design to demonstrate the need for network security. This test will expose many common security holes that exist with major operating systems. In particular, this test will look for windows file sharing security issues. Whether you're connected with a T1, cable modem, DSL, or dialup, you are at risk of being attacked. This is not so much of "if" as a matter of "when." With some simple precautions however, you can minimize or eliminate your exposure to these attacks. Our Port Scan Security Check is designed to help you discover these problems in order to fix them.
Shields UP! Internet Vulnerability Profiling:
Displays your IP address and asks for your consent prior to profiling your PC for security holes. Once you read the orientation material select among the listed security check buttons.
Qualys' Free Browser Checkup:
a series of audits designed to test and fix your browser's security vulnerabilities. Qualys services hundreds of companies—including Adobe, Apple, Bank of the West, British Telecom, HP and Tower Records—for their Network Security.
Takes you through several interactive steps to check your browser.
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