11/19 Talk about when a computer breaks down.

One of the worst things that can happen to people is their computer breaking down.
* break down: 고장 나다.
ex> My car broke down, so I had it towed to a service center.

There's also the case of having downloaded a virus or some other type of malware.
* malware: 악성코드(malicious software)

You need to run a virus check to remove any spyware, malware, or worms.
* run a virus check(scan): 바이러스 검사를 하다.
ex> You must run a virus check on a regular basis.

The worst-case scenario would be having to reinstall the operating system completely.
* worst-case scenario: 최악의 시나리오
ex> In this case, the only option is to reinstall the operating system completely

If you've never backed up your computer before, this could be a huge blow for you.
* huge blow: 큰 타격
ex> The virus attack was a hugh blow for many computer users.

@ You're going to have to Take it up with him.  그 사람하고 직접 상의해 봐.