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Quarantine is a safe place in Avast Antivirus for storing potentially harmful files and completely isolating them from the rest of your operating system. Files in Quarantine cannot be accessed or run by any outside processes, software applications, or viruses. We recommend sending the following file types:. The file is submitted to Avast Threat Labs for further testing.
In most cases, Avast Threat Labs processes the files they receive without sending a response to you. By default, Quarantine is allocated a maximum space of MB , which you can change in Quarantine settings.
To configure Quarantine space allocation:. Malaysia English. Under Content , click JavaScript. Click the Add button next to Allowed to use JavaScript. Click the shield icon to the left of the address bar.
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Windows Defender is anti-virus protection software that comes with Windows 8 and replaces Microsoft Security Essentials.
Brian Hooper has more than 10 years of editorial experience. Hooper has provided editorial services for New York publishing houses and currently writes for Fortune companies in Silicon Valley.
He holds a Bachelor of Science in business administration. Home Software. Quarantine vs. Knowing which action to take in a given situation is crucial to the health of your computer.
Here's a quick rundown of their functions:. Deletion is tricky. If you instruct your antivirus software to delete all infected files, some that are crucial to your computer's operating system might get deleted. This could affect the functionality of your operating system and programs. Cleaning can be useful, but antivirus software can't clean a worm or a Trojan because there is nothing to clean; the entire file is the worm or Trojan.
Quarantine occupies the middle ground, moving the file to safe storage that's under the control of the antivirus application so that it can't harm your system. This gives you the option to restore the file in case you decide the file was mistakenly tagged as harmful. Generally speaking, the best option for a worm or Trojan is to quarantine or delete. If it's a true virus, the best option is to clean. However, this assumes you are able to distinguish exactly what type it is, which might not always be the case.
The best rule of thumb is to proceed along the continuum from the safe option to the safest. Start by cleaning the virus. If the antivirus scanner reports that it cannot clean it, choose to quarantine it so that you have time to examine what it is and decide if you want to delete it.
Delete the virus only: 1 if the AV scanner specifically recommends this; 2 if you've done research and found that the file is totally useless and you're certain it's not a legitimate file; or 3 if there's simply no other option.
Check the default settings in your antivirus software to see what options have been preconfigured for automatic use, and adjust accordingly. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content.
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