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How to clean viruses off your computer for free

Dave Farquhar security December 14, 2016March 13, 2021antivirus, bitdefender, compaq, computer security, hp, malwarebytes, thumb drive, toshiba, Windows 10, windows 7

Whether you’ve gotten a tech support scam phone call or not, it can be helpful to know how to clean viruses off your computer for free. And yes, I do mean free.

A lot of people get ripped off due to virus scares and it makes me mad. I’m a computer security professional. I advise large companies on computer security for a living. Today I’ll take a few minutes to advise you.

Dave Farquhar

David Farquhar is a computer security professional, entrepreneur, and author. He has written professionally about computers since 1991, so he was writing about retro computers when they were still new. He has been working in IT professionally since 1994 and has specialized in vulnerability management since 2013. He holds Security+ and CISSP certifications. Today he blogs five times a week, mostly about retro computers and retro gaming covering the time period from 1975 to 2000.

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Antivirus progress

Dave Farquhar security May 14, 2013May 12, 2013antivirus, avast, bitdefender, Microsoft Security Essentials, pc magazine

When Microsoft Security Essentials first came out, it was an improvement in antivirus performance. Now, it’s middle of the pack, according to PC Magazine. That’s great. Vendors are finally taking performance seriously.

What that means is that by replacing MSE with F-Secure Anti-Virus 2013, Kaspersky Anti-Virus (2013), Sophos Anti-Virus 10.2, ESET NOD32 Antivirus 6, Norton Antivirus (2013), Avast Free Antivirus 8, or Bitdefender Antivirus Plus 2013, you can speed up your computer. Considering Norton Antivirus was once bottom-of-the-barrel in the performance arena, I see this as a good thing.

Of the bunch, Avast is the only freebie. Though if your ISP offers one of the others as part of your subscription, or you don’t mind paying for antivirus, the others are an option. But maybe, just maybe, if I replace Microsoft Security Essentials with Avast, Peggy will quit calling me at dinnertime and telling me my computer is slow. But I doubt it. Read more

Dave Farquhar

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Bitdefender 60-second virus scan: a review

Dave Farquhar security March 14, 2013November 30, 2015antivirus, avast, bitdefender, firewall, malware, spyware, trojan horse

I mentioned Bitdefender 60-second virus scan the other day, but didn’t give it a proper review. It’s time I remedy that.

It’s a small 160K stub that downloads a few more megabytes worth of stuff after you run it. Unlike most other free antivirus apps, this one is intended to be secondary–a marketing tool to show you what your primary antivirus isn’t catching that Bitdefender would, I suppose. But I think it’s useful as a second line of defense, and recommend using it as such.

Dave Farquhar

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The men (boys) who spy on women through webcams

Dave Farquhar security March 13, 2013November 3, 2025antivirus, Ars Technica, avast, Bit Defender, bitdefender, chrome, defense in depth, firefox, macintosh, malware, Malware Domains, malwarebytes, Microsoft Security Essentials, Task Manager

Ars Technica made a bit of a splash this week with this provocative headline. This is real.

The article gives the usual advice, like not opening e-mail from strangers, not clicking attachments from strangers, and not visiting dodgy websites. That’s all good advice, as is staying off torrent and other file sharing sites, but even all that is not enough.
Read more

Dave Farquhar

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Advice on dealing with ransomware

Dave Farquhar security February 8, 2013December 1, 2018android, asus, bitdefender, infestations, malware, malwarebytes, thumb drive

PC Mag has some advice about ransomware. The most important bit of advice is to have a secondary machine that you can use to go get help.
Read more

Dave Farquhar

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Windows Medkit cleans up the damage after removing malware infestations

Dave Farquhar security January 27, 2013January 26, 2013bitdefender, infestations, malware

I’ve written before about cleaning up Windows boxes using a Bitdefender Live CD, but the live CDs often don’t clean up all of the collateral damage that the malware does to try to keep you from uninstalling them.

That’s where Windows Medkit can come in.

Dave Farquhar

dfarq.homeip.net

Ways to speed up an aging laptop

Dave Farquhar Hardware, Software, Windows January 8, 2011December 19, 2015antivirus, bitdefender, ccleaner, firefox, intel, lifehacker, malware, McAfee, Microsoft Security Essentials, optimizing windows, samsung, symantec, visual effects, Western Digital

Yesterday Lifehacker did a feature on laptop tweaks and upgrades, that basically came down to reinstalling the OS, adding memory, and upgrading to an SSD. All of those are good things to do of course, but there’s more you can do. I posted a response there; I’ll elaborate a bit here, where I have more room to do so.

There are tons of links here to previous content I’ve written; optimizing aging machines is a recurring theme for me. I’ve been writing on that topic for 11 years now.

Dave Farquhar

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