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When an antivirusplaces an infected file in quarantine, it deletes the file from its original location and makes changes to it so that it cannot run as a program. What happens when you quarantine a virus? What is an antivirus quarantine?Ī quarantine is the process of isolating a file that’s suspected of being infected with a virus in order to prevent it from contaminating other parts of your computer.

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It depends on the antivirusyou use, and your software settings. If an infected file is found, it may be sent automatically to quarantine or you may be given a prompt to decide what to do with the infected files. With a basic scan, it may only scan major files to save time, while a deeper scan will usually take longer as it scans every file on your computer. The difference usually has to do with the depth and breadth of the scan.

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Depending on the software, you can choose between a basic scan or a full scan. Active scanning occurs when you tell your antivirus software to scan your files. Having your antivirus on in the background uses more battery power since it’s open even if you’re not using it, but it’s a great way to protect your devices without having to do anything yourself.Īctive scanning is different, and can be more powerful than passive scanning.

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If you’ve ever tried to download a file from the Internet and were warned of a potential threat, that’s your antivirus protecting your computer in the background. Passive scanning is when you allow your antivirus to work in the background. The first way is passive, the second way is active. There are two main ways an antivirus can scan files on your computer. It’s important to understand the details so that you know what’s happening when you send infected files into quarantine. You click ‘yes’ without putting much thought into what’s actually happening.īut what does quarantining actually mean, what does it do and is it safe for your computer? Your antivirushas just finished a regular scan and it’s asking whether you want to quarantine the virus it’s found.

To quarantine or not to quarantine? That is the question.

What is the simplest way to protect my computer and data?.

Do certain antivirus programs perform the process more efficiently?.

Do antivirus programs quarantine all infected files?.

Should I be worried about infected files?.

Are quarantined viruses actually removed?.

What happens when you quarantine a virus?.

Of course, as part of looking after your system, a good antivirus will bring in extra layers of defense – such as a ransomware shield to defend against that particularly nasty strain of malware. The point here being that in some rarer cases, the damage isn’t stopped immediately, but the antivirus should step in very swiftly and any casualties should be minimal. Some packages will (again hopefully) be able to recover those files (fingers crossed). When a piece of malware is found on your PC, the antivirus will take immediate action, hopefully stopping any malicious processes in their tracks there and then, while quarantining the malware so it can’t harm your system.Īs we’ve seen in our antivirus reviews, when it comes to particularly dangerous malware like, for example, ransomware, sometimes the process isn’t quite stopped immediately, which may mean the ransomware manages to encrypt (hopefully only) a small number of files.

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In truth, that’s probably not a likely scenario, and strictly speaking, you may not ever want to run manual scans – indeed many folks don’t bother – but it doesn’t hurt to do so occasionally as a kind of ‘safety net’ measure. That said, it can be worth running a manual system scan with your antivirus now and then (or scheduling one to happen), because there’s a chance it might just pick up something that was previously missed (due to subsequently updated definitions). Real-time protection is really the key to defending your PC, aiming to ensure that malware doesn’t get onto your machine as you go about your daily computing usage. This simply means monitoring for suspect or malware-like behavior in the processes or files on the host PC, in order to catch something new which isn’t yet present in the program’s definitions. That said, no matter how quick definition updates might be delivered, there are always freshly introduced pieces of malware out there that have never been seen before, which is why any good antivirus will also use heuristic technology. These definitions are kept as current as possible with updates piped to the antivirus software usually on a daily basis (or even hourly). With both methods, the antivirus application relies on what are known as 'definitions': a library of signatures of existing malware.

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