how do online antivirus services work?
89077
It may or may not be a good idea.  It depends.\n\nOnline Virus Scans often work by using an ActiveX control to download software to your computer.  It will ask you for your permission, and a temporary antivirus program will run from your PC and scan you.\n\nI am not sure of the validity of most online antivirus services, although I have tried this:\n\nhttp://www.windowsonecare.com
792964
.\nNot sure whether a antivirus like you ask is present or not.\n\nBut my advice is just install a good antivirus coz it ll catch the virus whenever it try to get into ur system.\n\nPREVENTION IS BETTER THAN CURE.\n\n**********\nVasu M\n*********
771310
Ok, that's a lot of questions.  A great anti virus software that is free is called Zone Alarm. \n\n1)    This is iffy, a lot of ani virus programs will fight with one another, I recommend just installing one.\n\n2)     See question one\n\n3)     It will stayed turned on all the time, otherwise, what's the point?\n\n4)     It depends on the email program that you are using.  Are you using a program like Outlook?  That requires a plug in to do so....  If you are using Yahoo or hotmail, it's internet based.  In both cases, it will scan for viruses.  Most online internet programs already have a built in virus scanner.
882894
Scan your computer with your antivirus program in safe mode.
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internet security and antivirus programs often come packaged together.\n\nInternet security would include things like a pop-up blocker and a firewall to stop bad programs being downloaded.\n\nantivirus I think would scan files which have been downloaded\n\nin general internet security is prevention and antivirus is the cure. Having both is usually a good idea.\n\n\nedit: yahoo has its own virus scanner for attachments which is separate from anything you have on your computer
200467
free scans and removal tools are b.s. in my opinion.\nthey are limited in their capabilities.\nif you have internet service you shouldnt surf the web without an anti virus program running. \nits worth it to put the money out in advance because your system can get really screwed up without virus protection.
857453
use an Anti-virus program
1175696
when you're talking about internet security, which comprises antivirus and antispyware programs, as well as firewall security.\n\nyou can't hardly find an all-in-one solution, and even if there are quite some that's available, you can't still get a full protection. it's still best to install @ least these 3 different standalone programs.\n\nAntivirus - go for Avast 4.7 Home Edition (free)\nAntispyware - go for Spyware Terminator 1.4 (free)\nFirewall - go for ZoneAlarm 6.5 (free)\n\nyou can all find these in www.freewarefiles.com and www.download.com\n\ngood luck!
283675
Well your tech guy is right about his statement, but there are somethings that must be considered first.\n\nWhen an antivirus server is present than there is a different way to install it on workstations called client installation, where we instruct symantec antivirus client to be managed by the server, so it gets updates from server.\n\n(that is called managed antivirus client installation)\n\nin your case it's possible that the server he (techguy) made is after your computer installation, and probably he needs to install antivirus clients on your computer and than you will get automatic updates.\n\nwhen your antivirus software is configured in client/server environment, it is indicated by a lock symbol.
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1. For your Anti-Virus.........................\n\nPersonally, I use the AOL AntiVirusShield. Don't let the name AOL scare you. AntiVirusShield is made by Kaspersky which is one of top-rated anti-virus vendors in the world.\n\nIn recent tests, the most popular free anti-virus, AVG, was only able to detect about 82% of a very large sample of viruses. On the other hand, AntiVirusShield was able to detect better than 99% in the same test.\nhttp://www.virus.gr/english/fullxml/default.asp?id=82&mnu=82 \n\nAOL AntiVirusShield has excellent virus detection rates and is extremely light on using your computer resources.\n\nFree to anyone, AOL member or not from:\nhttp://www.activevirusshield.com/antivirus/freeav/index.adp?\n\n\n2. For your Firewall......................\n\nAn excellent free firewall is Comodo Personal Firewall. It can pass firewall "leak tests" that even a lot of the "paid-for" firewalls cannot pass.\n\nAnd Comodo has a great support forum. Where the CEO / President of the company might even himself answer your question! Check it out at:\nhttp://www.personalfirewall.comodo.com/\n\n\n3. For your Anti-Adware and Anti-Spyware needs...............\n\nPick and choose at least 2 anti-spywares from the list below. New spywares are created literally hourly, so no single anti-spyware can really detect all malware. Have at least 2 on hand and alternate scanning with each every few days or so. All are free. All can remove as well as detect.\n\nSpybot Search and Destroy:\nhttp://www.safer-networking.org/en/spybotsd/index.html\n\nEwido:\nhttp://www.ewido.net/en/download/\n\nAdaware SE:\nhttp://www.lavasoft.de/software/adaware/\n\nA-Squared:\nhttp://www.emsisoft.com/en/software/free/\n\nSUPERAntiSpyware:\nhttp://www.superantispyware.com/\n\nWindows Defender:\nhttp://www.microsoft.com/athome/security/spyware/software/default.mspx\n\nUnfortunately, many "paid for" anti-spyware products are in fact either of limited usefulness or downright scams. When in doubt, look at the list of rogue anti-spyware solutions listed here:\nhttp://www.spywarewarrior.com/rogue_anti-spyware.htm\n\n\n4. And to protect your computer from ever getting infected with spyware in the first place...................\n\nSpywareBlaster:\nhttp://www.javacoolsoftware.com/spywareblaster.html\n\nSiteAdvisor:\nhttp://www.siteadvisor.com/\n\nEverything here is 100% free!!!!!!\n\nGreat luck!
101461
Several like TrendMicro Housecall, BUT they don't protect or stop viruses.  They remove them after the viruses have attacked your system. If the virus/trojan doesn't stop you from getting online.\n\nProbably not the first to say this, but AVG has a free downloadable Anti-virus program. It will protect your system, remove viruses it finds and it has very regular updates.  And it is FREE!!
334608
No PC is fully protected, I'm sorry to say this but it's true! \nReasons:\n1. first the virus program appears (attacks) and then the antivirus! (some antivirus software use recent bloodhound technology but it ususally gives many false positives so I don't recommend it)\n2. a simple spyware program only removes spyware! It doesn't protect you from it; for more security use a spyware active monitoring (like a firewall), but still this doesn't assure that you won't receive spyware (same as 1)\n3. of course there are programs that do it all, they are generally called Internet Security package and it's said that they should do all the work!
548239
Of the products on the market today for straight antivirus protection, I'd have to go with PC World's recommendation, BitDefender.\n\nhttp://www.pcworld.com/reviews/article/0,aid,124475,00.asp\n\nThat, in combination with good antispyware, a firewall, and protection against registry alterations and rootkits, will provide your PC with layers of effective defense, as opposed to using a single product that, if compromised, would leave your PC defenseless.
98767
virus work:\nmost likely virus in the real world\n\nanti virus work:\nscanning files/memories comparing every bit with "signature" that already known in the virus database.\nthen do whatever it should take (delete/cure/quarantine)
776416
If you download Avast antivirus program from Prague,  http://www.avast.com    I have used this antivirus free for home use in two computers for nine plus years an I never had one virus.  Plus it scan all 195,000 objects, including, msn mail, yahoo,mail an all zips.  The Avast corporate is the same version they just make corporate pay.  You will get two or three times per day auto updates.  Plus has one of the very best background you can fine in real time.  Stops any virus found before it can enter your system.   \n\nThey will ask you for your email address so they can send you your free key that is good for one year.  After one year all you do is request a new key.  \n\nPls., know that you can only run one antivirus program or you will have conflict.  So what ever program you have now, turn it off or remove, as it is obvious the antivirus system you have failed you.\n\nMinddoctor, France
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In my spare time I test on my backup computer all antispyware/antivirus programs to see if the perform as claimed And especially to see which one have embedded trojans/adware either in their program or in the wizard installer used to guide you through the installation. \n\nWhat is rate as 1-2-3-4-5 is not always the best. Especially when you can find free programs that are light years ahead in technology over the purchased.\n\nIn my computer I use the following free programs.\n\nFor antivirus you can only use one or you will have serious conflict with your system. You can use three or four antispyware without any conflict.\n\nAvast in my opinion is the very best. Have you Avast for nine plus years and never had one virus. They are out of Prague.\n\nhttp://www.avast.com This program is free and has one of the very best background scanner that will catch any virus in real time and destroyed the virus before it can enter you system. \nUpdates auto., two or three times per day. They will ask you for your email address so they can send you a free key that is good for one year. After one year you only have to request a new key.\n\nAntispyware\n\nhttp://www.ewido.net This company was out of Germany and has since been purchased by AVG. Now the name is AVG antispyware. Still the same program with excellent technolgoy. When you download the program it will come with all functions an if you don't purchase in thirty days they will just remove the background scanner and the auto updates. You will update on a manual basis. Scans all 195,000 objects in my system.\n\nhttp://www.emsisoft.com This company is out of Austria. Almost the same as the new AVG. A2Squared free version download. They will ask you for you email address so they can send you a key that is good for life. You will get any new free version with the same key. Plus has rootkit protection and rogue dialer protection. (I have ADSL, but use for the added protection).\n\nFirewall\n\nhttp://www.zonealarm.com Excellent firewall free, if you download their free for home use version. You will get daily updates if any are due, plus if they come out with a new free version they will notify you via automatic and you just say yes, download the new version. The new version will remove the old version. Always best to do is clean install, instead of allowing the new version to copy the files of what you allowed or deny. You will just have to allow, or deny incoming/outgoing traffice again. If you check off remember on Zone Alarm, they will not ask you again if you want to allow or deny the same program. \n\nFor "zero day attacks", Attacks that hit before any security company has knowledge of the attack. I use a free software that is is excellent state of the art technology to identify any program that the behaivor is strange, like trying to download hidden files, etc. etc. Will get a pop up with indepth details, so you can decide for yourself if you want to allow or deny. Plus will block all malware. http://www.cyberhawk.com\n\nIf you want to spend money you can use what I use in my backup pc. http://www.filseclab.com Twister Trojan Antivirus. This program is used by the Government of China and you only pay a one time fee of $29.99 for live. Will include all new versions, auto, updates, an excellent support. Has a real great background scanner that really works, plus many other features that operate from the icon in the tray. Well worth the one time fee. Most other companies charge you an annual fee. China does not believe in the annual fee. \n\nClinical Psychiatrist, France\n\nExcuse my english\n\nClinical Psychiatrist. France.
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Let me tell you avg users.. im not lying ...... but Avg was unable to detect my ownmade virus too.. and avg's weak point is it's defense... yes online protection.......\n         only norton and avast were able to detect..... I tried Mccafee too... since norton slows down computer Use Avast! it's Excellent!........