在您的计算机上查找病毒或恶意软件从来都不是一种愉快的体验，但是为什么杀毒软件要隔离它们而不是将它们从您的计算机中完全删除呢？今天的超级用户问答帖子回答了一位好奇的读者的问题。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

照片由Connor Tarter（Flickr）提供。

问题

超级用户读者Sardar\u Usama想知道为什么杀毒软件会隔离病毒和恶意软件而不是删除它们？:

Why does antivirus software quarantine viruses and malware instead of completely deleting them? I think it would be better to make sure your computer is safe by completely getting rid of them. How can I manually remove quarantined items?

为什么杀毒软件会隔离病毒和恶意软件而不是删除它们？

答案

超级用户贡献者朱莉·佩尔蒂埃和莫库拜为我们提供了答案。首先，朱莉·佩尔蒂埃：

Antimalware applicati*** provide a quarantine option, which is often on by default for two reas***:

1. Keeping a backup of the items identified as threatening in case of a false positive. Although not very common, I have seen cases of false positives on many different legitimate application files and drivers.
2. Having the items in quarantine may allow for them to be better (further) investigated. The fact that a particular virus or malware matches a known signature does not mean that it is exactly the same, but may actually have other unique characteristics.

接着是莫库拜的回答：

If a virus or malware has embedded itself into a file you actually want, such as a Word document or similar, then outright deletion may be the worst option from the user’s perspective. Quarantine at least gives you a chance, however risky, to get the actual file contents you need back.

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